This is fully on the side of Control. I strung this @ 58 which i felt killed power for me. Also being poly, it kills the spin as well. Overall it felt a little dead. But it does give you amazing control and precision with your shots.This is more for folks who are touch artist and doesnt mind sacrificing power.Great strings. They have the perfect balance of power and comfort, and provide excellent topspin for me.The package look has recently changed, but the name (Gamma Zo Twist 16G) is the same and is the same strings.These strings are amazing for getting a lot of spin on the ball and getting great topspin for nice groundstrokes. They haven't broken yet, so they aren't all that fragile. If you base your game around spin, definitely give these a try.i definitely felt more spin and "twist" to my hits but i guess due to my lack of skills and my current playing level i was not able to fully use the strings to its max potential; that being said, good strings, but what do i knowWas very spinny for about 3 hours of play then when it went dead, it was terrible on the arm. Polys are like that, but this one especially so. They never break, but it may break your arm if you have the slightest bit of tennis elbow.Exactly what I wanted at a good price.Durable, nice spin.i am really enjoying play with this string, it is a little stiff at first but then it loosens up and boy the spin, cut and control is awesome. I do wish i could get it in 18g.