I have bowled in all three eras, Three Dotter, Carmel White Dot, LT-48, all the urethane covers, and now with the bombs. On the THS that I only practice on once in a while I average around 230, in my home house (Twister pins, OB outside, hooking middles) average 204. Shot 1687 at my first ABC last year, so I would estimate about 200 for real.