Just finished stringing up a batch. M2 in the mains at 54 pounds, Hollowcore in the crosses at 58. This is my first time stringing poly. Even in the mains, it's a hassle. I couldn't figure out how to actually lower the dropweight for about 15 minutes... At the moment, it feels very stiff. I'll be playing with it tomorrow, so more about it then. A bit about me: I'm a 175 pound, 5'8 16 year old. I played JV tennis last season, and will probably move up to varsity this year. NTRP wise, I'm most likely a 3.5. I'm an all courter, and enjoy messing with my opponent's minds. This is the first time I'll be playing with a poly. That being said, I think that people like me are Luxilon's target market for the M2, being as how it's supposed to be a "softer" poly.