Comments: I had strung this up at 60 lbs on a Pure Drive Cortex as my 3rd stringing and 1st time doing a poly. This was at 1.10mm, as it was what came with my stringing machine. These strings are a pain to string. Kinking and tying knots were a problem since it was so stiff. Plays alright, soft and mushy, but not worth the price.
From: Eddie, California, USA 07/10

Comments: Strung on a Prince NXG OS at 65#. Gamma Zo Power 16 provided a good blend of spin, feel, control and power for me. I liked it more than Gamma Live Wire Revelation, Synthetic Gut or Zo Ice and much more than Wilson Stamina or Prince Original Synthetic Gut. It's true that it didn't move much on my racquet. Unfortunately, though, the string broke after only 10-12 hours of play. I give it a 9 of 10 rating. The only string I've tried that I clearly liked more than this one was Wilson NXT Tour.
From: Will, Bismarck, ND, USA. 5/10

Comments: This string is amazing. I had it for about 2 months now and it is still playing great. What I found amazing is the strings have never moved on me once since I got them on. This was really surprising to me. Normally after every point I have to move my strings back into the original place. Great string gamma!!!!
From: Chris, Wisconsin, USA. 07/09

Comments: Gamma Zo is very hard to string. It can easily kink and very hard. Also when using a drop weight stringing machine, one can notice that the weight slowly moves down (meaning that it begins to stretch even though my clamps are tight for this string). When reaching end near the last cross, its hard to mesh/weave. Your finishing knots too, since the string is so stiff (like a coat hanger), are very hard to make. Not recommended for amateur stringers.
From: Edgar C., Chicago, IL 07/09

Comments: I have tried this string at all different tensions. I don't care at all for performance at lower tensions, but love it at highest tensions--great control. Agree that perhaps Gamma should make it in a 17 gauge for big spinners. But 16 still gives me confidence to hit hard topspin approaches on short balls--not worried about balls flying long. Durability superb. Power more than adequate. Use 65 lbs on Yonex RQ700 [lrg & long] and 63 lbs on Wilson Hyper Hammer 4.0 [mid].
From: Jim, San Jose, CA, USA, 08/08

Comments: I do not like these strings what so ever. When I first strung it at 57 pounds I loved them great power not so much control but it was okay. But after a week I lost all touch still great power though. But after another week went by no control, no topspin, NOTHING! I am now ready to try the champions choice string. .... congratz gamma for making the worst string EVER! P.S. never buy these strings.
From: Bill, Leesburg, VA, USA. 7/08

Comments: I tried this string in comparison to the Gamma Live Wire XP I've been using. It was a bit harder to string because the string is slicker and it would tend to pull through the clamp on the first few mains. The string felt "mushy" to me and did not give enough feedback on how I was hitting the ball. It is durable, but loses tension and control after playing with it a while. In fact, I would end up cutting out the string because it was unplayable before it would break. I typically break strings after about 20 hours due to topspin. I've found that I prefer multi-filament that give me more feedback on the state of the string.
From: Tom, Atlanta, GA, USA. 1/07

Comments: The first time I tried the strings out after getting them strung they felt very nice on the arm and I had much better control than my previous string. But after a couple of days of hard hitting practice the strings seemed to have lost their "touch". But it did still add an extra "pop" to my strokes.
From: Anon. 8/05

Comments: I put Zo power in my Babolat racquet because my stringer said it would feel like Luxilon ALU Power, that was not the case at all. When I hit the ball it either gave me to much power or too much control, so I did not know what to do. It also did not have good tension hold at all after 2 or 3 hours it lost its tension. Although it�s a durable string I do not recommend it.
From: Logan, Louisville, Kentucky, USA 07/05

Comments: Normally, it takes me no more than two weeks to break my string. With this, I have had it in my racquet almost five weeks and it hasn't broken. Other people have not had good control with this but plenty of power. I, however, have had both, power and control. I recommend this to any player who has trouble with string that brakes.
From: Nathan, @ 67 lbs. Union City, TN, USA

Comments: At first, these strings felt like rocks! But after a few matches and hard hitting, the strings started to settle in and loosen up a little. I felt less control and more power. The good things about these strings is that it NEVER moves and it always looks new. I call it "the strings of steel," because they kind of look like steel rods and are impossible to break! It took me at least 3 months of hard hitting for it to finally break! So basically, it was bad when I first started playing with it, but good after a few matches. Strung on LM Prestige MP @ 57lbs
From: Jeffrey, San Jose, CA, USA. 02/05

Comments: A string obviously meant to compete with Luxilon's ALU Power, Gamma Zo Power is a soft and forgiving polyester. It does indeed offer a very good amount of power, but I had trouble controlling it. ALU Power, Head UltraTour 17, and Prince Polygut 17 were all much more controllable (perhaps Gamma should offer 17g.) For the price, I would suggest Polygut strung a few lbs looser. Strung in a Dunlop 200G XL @ 74lbs.
From: Dean, Appleton, WI, USA. 8/04

Comments: I normally use Kirschbaum Touch Turbo. The Gamma ZO takes a few matches to get accustom to, but it really is softer on the arm then regular polys and has more control. The power is less then I thought as was evident on my 1st serve but-I'll take more control than power. Overall I give it a score of 8.8 out of 10. Wish it was cheaper.
From: Stephen, Bellevue, WA, USA. 2/04