Comments: This string is just impossible to find a consistent power to spin range. Short shots you think your going to over hit so you swing slower and you hit with too little power and it all backfires. On a prince exo3 rebel 95(2009) this string is ridiculous. Awesome feel but no consistency. to much power, not enough softness. Try putting a multi in the crosses like technifibre nrg2 17 gauge. It softens it up amazingly and provides the feedback all open to tour level players need and want. Bitter sweet string.
From: Anon, 3/12

Comments: Great string for a poly, best poly I have ever tried. Excellent in a hybrid with Tecnifibre X-One Biphase, it is the perfect combination. Use it as a cross with Tecnifibre X-One Biphase in the mains and it won't break so quickly. Playability is better using it as a cross and also durability. Using Beast in the mains make the X-One fray quickly. Try this combination and you won't look back for sure. Rather expensive but worth it all days in the week!
From: Steff, 11/11

Comments: I've used these strings for about 2 months now. When I first started using them, they lost their tension really quickly and I didn't like that so I played with my other racquet that had older Prince Recoil strings in it. But, later I used the Beast strung racquet and really liked it! Once the strings have settled to their playing tension they seem to stay consistent. I love the feel and power that I get from them. I use them on a Prince Black O3 racquet.
From: Brett, 9/11

Comments: These are strange strings. I don't know if I like them or hate them. They perform like like stiff-multi's. It also seems as if they have to be 'warmed-up'. They just don't feel 'right' off the top, but after a half-hour of hitting, they start grooving. Strangely enough this process seems like it has to be repeated before each hitting session. Not just the first time around.
From: Klementine79, 8/11

Comments: These strings are god like on serves. I could really blast my first serve and get loads of spin. The only problem is that these string are way too powerful for me when it comes to groundstrokes. But if you have a big serve and want to have even more power on serve then I strongly recommend these strings.
From: Andrew, 7/11

Comments: This string is all about power! If you are looking for power go for it. Good tension retention and durability too.
From: Renato. 5/11