37 USRSA Playtesters tested this string for 5 weeks. The USRSA quoted, "The comments by our playtesters on Pro Supex Big Ace are so uniformly positive that if we didn’t know better, we’d suspect that some playtesters copied the responses of others. First, it’s rare for nearly two-thirds of a playtest team to have such nice things to say about a poly, and second, over half of the team members specifically mentioned the control afforded by Big Ace. For what seems to all outward appearances to be a love it or leave it string, our playtest team members seemed to love it."

Big Ace received top ratings in 3 categories:

Top 5 for durability
Top 5 for resistance to movement
Top 7 for tension maintenance

The USRSA has already tested over 110 strings. Just look at those ratings. Phenomenal. Not hooked yet? Read below for the playtester's comments or click here to go straight to the bottom of the page for more information how you can buy this great string.

“This is one of the best polyesters I have ever used. The power on serves is exceptional and the spin is spot-on. This is a great control string with more than enough power. Plays well from all areas of the court.” 4.5 male all court player

“This string has no notching or movement, making it a very durable control string. Even after hours of hard hitting, it stays remarkably fresh. The most outstanding feature is the consistency of feel and playability, despite many hours of hard hitting.” 4.5 female all court player

“This string plays with a soft and bouncy resilience. I had to keep reminding myself that it was a polyester. It is recommended for those who are searching for control and spin in a comfortable package. After 24 hours on the dirt, this string looked and played like it was new. A rare treat.” 5.0 male all court player

“This polyester provides a luxurious sweet spot and loads of controllable pop! I expected the string to go “dead” after 35 hours, but it holds up surprisingly well. The combination of playability and power ranks with high-end multifilaments. The spin from the backcourt is impressive, and volleys come off with crisp precision. I'm considering a switch.” 5.0 female serve and volleyer

“This is definitely a high end polyester. Not only does it offer incredible durability and resistance to movement, the playability and comfort are on par with the best strings on the market.” 4.5 male all court player

“The combination of control, power and touch makes this an all court poly. The comfort level is adequate, consistent with the breed.” 4.0 male baseliner with moderate spin

“This is a good overall string with no major flaws. The strings don’t move and the control is excellent. This is recommended to heavy hitters looking for good durability.” 4.0 male all court player

“Great playability and exceptional tension maintenance. As a multifilament user, this is not exactly my cup of tea, but I’m starting to see why people use polyester.” 3.5 male baseliner with heavy spin

“While I did need a dampener to counter the ping, I ultimately discovered some exceptional playability. As a natural gut user, polyester has always been hard for me to appreciate. This string has altered my thinking. The combination of control, durability and power is undeniable. Anybody curious about polyester should start here.” 3.5 male serve and volleyer

“This string can sustain high tensions without sacrificing comfort. The playability and spin are immediately noticeable. For non-polyester users, the adjustment period is only slight.” 3.5 male all court player

“Given the coil memory, installation is not easy. The overall playability is much better than expected. The string gets better with age. After 10 hours, my serve and groundies had more pop. Not only is this great for hard hitting baseliners, touch players will not be disappointed.” 4.5 male all court player

“Handling this string lead me to expect a very stiff, uncomfortable playtest. If you add the fact that I'm a natural gut user, polyester is tough sell. Having said that, however, I am very impressed by the playability of this string. This string not only has great control, it plays much softer than its polyester pedigree.” 5.5 male all court player

“The rare combination of power and control make this a first-rate string. I expected some noticeable tension loss, but the original crispness and playability lasted for over 15 hours. The resistance to movement adds some welcomed control and durability. Perhaps I should give polyester a second look.” 6.0 male baseliner with heavy spin

“Though not a polyester fan, I was impressed with this string’s lively response. It does lack a little touch, but the control makes it a pretty user-friendly string. Spin is very easy to generate and the power level is high.” 5.5 male serve and volleyer

“This string is proof that the polyester market is evolving. The power is impressive and there is very little tension loss. This is a solid entry point for this string type.” 4.0 male all court player

“This is a very stiff string -- stiffer than most of the polyesters I’ve tried. It has excellent durability and resistance to movement. The bite is very pronounced. This is great for baseliners with heavy topspin.” 3.5 male baseliner with moderate spin

"The playability, durability, and power are impressive. This string would be perfect in a hybrid with a soft cross string. It comes with a very clear message: polyester strings are getting better.” 5.0 male all court player

“For a polyester, this has low coil memory. The crosses were installed with minimal kinking. This string holds tension better than any I have ever used. Outstanding! The string plays dead at first, lacking power and feel. Over time, however, it improves measurably. Full swings are rewarded with a high degree of control, spin and comfort. There is very little vibration, making for a very comfortable ride.” 4.5 male all court player

“This is tough to install, as it kinks frequently. However, it has great control. The resistance to notching is a truly impressive. There is very little string movement and the durability is great. Like most polyesters, the response is stiffer and less comfortable than nylon based strings.” 4.0 male all court player

“As a multifilament user, a full polyester set-up is too stiff for my taste. With a soft cross, however, it would make a great hybrid. The power is high and the spin potential is quite pronounced.” 5.5 male all court player
“This is a powerful string with very little movement. It holds tension suprisingly well for a polyester. The response from baseline is great, with mindless spin control.” 5.0 male baseliner with heavy spin

“Finally, a polyester with some zip. This string does everything well, including touch shots. If you are looking for a comfortable polyester alternative, look no further.” 5.0 female all court player

“This string is initially stiff and powerless. After a short break-in period, however, the playability improves. This is a great string for those in search of control and durability.” 4.0 male serve and volleyer
“This is a soft polyester with great control. It is a good option for polyester loyalists looking for more comfort.” 5.0 male all court player

“Playing with a full poly set-up hurts my elbow. However, I am impressed by the string’s resistance to movement. It also holds tension well. This is designed for heavy hitters with lots of topspin.” 5.0 male baseliner with heavy spin

“This string doesn’t move or notch, and it seems to preserve tension better than most polys. This is clearly a durability option for big hitters." 4.0 male all court player

“This string offers a ton of bite and massive amounts of control. The durability and lack of string movement make it a perfect choice for string shredders. Given its relative lack of elasticity, however, it is recommended for heavier frames, healthy tendons, and sound mechanics.” 4.5 male all court player

“This string is for the big hitter at your club who doesn’t need any extra power. The spin and control are phenomenal. Solid topspin mechanics are rewarded with excellent bite and adequate comfort." 5.0 male all court player

“This is a very stiff string -- stiffer than most of the polyesters I’ve tried. It has excellent durability and resistance to movement. The bite is very pronounced. This is great for baseliners with heavy topspin.” 3.5 male baseliner with moderate spin

"The playability, durability, and power are impressive. This string would be perfect in a hybrid with a soft cross string. It comes with a very clear message: polyester strings are getting better.” 5.0 male all court player

“For a polyester, this has low coil memory. The crosses were installed with minimal kinking. This string holds tension better than any I have ever used. Outstanding! The string plays dead at first, lacking power and feel. Over time, however, it improves measurably. Full swings are rewarded with a high degree of control, spin and comfort. There is very little vibration, making for a very comfortable ride.” 4.5 male all court player

“This is tough to install, as it kinks frequently. However, it has great control. The resistance to notching is a truly impressive. There is very little string movement and the durability is great. Like most polyesters, the response is stiffer and less comfortable than nylon based strings.” 4.0 male all court player

“As a multifilament user, a full polyester set-up is too stiff for my taste. With a soft cross, however, it would make a great hybrid. The power is high and the spin potential is quite pronounced.” 5.5 male all court player
“This is a powerful string with very little movement. It holds tension suprisingly well for a polyester. The response from baseline is great, with mindless spin control.” 5.0 male baseliner with heavy spin

“Finally, a polyester with some zip. This string does everything well, including touch shots. If you are looking for a comfortable polyester alternative, look no further.” 5.0 female all court player

“This string is initially stiff and powerless. After a short break-in period, however, the playability improves. This is a great string for those in search of control and durability.” 4.0 male serve and volleyer
“This is a soft polyester with great control. It is a good option for polyester loyalists looking for more comfort.” 5.0 male all court player

“Playing with a full poly set-up hurts my elbow. However, I am impressed by the string’s resistance to movement. It also holds tension well. This is designed for heavy hitters with lots of topspin.” 5.0 male baseliner with heavy spin

“This string doesn’t move or notch, and it seems to preserve tension better than most polys. This is clearly a durability option for big hitters." 4.0 male all court player

“This string offers a ton of bite and massive amounts of control. The durability and lack of string movement make it a perfect choice for string shredders. Given its relative lack of elasticity, however, it is recommended for heavier frames, healthy tendons, and sound mechanics.” 4.5 male all court player

“This string is for the big hitter at your club who doesn’t need any extra power. The spin and control are phenomenal. Solid topspin mechanics are rewarded with excellent bite and adequate comfort." 5.0 male all court player

Are you hooked on Big Ace now? Here is how to order:

Click on the product name to go directly to our website and purchase Big Ace.