I carry 4 racquets and have been experimenting with all different polys - Cyclone (55 lbs), TurboTwist (57), Focus Hex (55), RPM Blast (55) and Tour Bite (both at 53 & 57). So far I like Tour Bite the best - best combo of spin and power for my game (4.0-4.5 topspin ear on both sides). Gives me the same type of spin as the Steam 99s that I tried with TB. I also like the Turbo Twist. Feels a bit softer but more power and less spin than TB. Plus it holds tension well. I am still trying the Cyclone and Focus. Both are significantly softer than TB and TT. Less power and spin than TB, and more spin than TT but less power. I didn't like Blast at all - just dead feeling for me I've got other packets to try - Black Widow and Big Hitter Blue. Anyone else use something that they like??