I' ve had my 2003 bk2 for a few days now and put quite a few shots through it. I had just put a rest on it when I first got it to send a few arrows through it so I didn' t have to strip down my cybertec cam 1/2, in case I didn' t like the BK. Well after 10 shots, the cyber was being stripped down, and fast. I got a 60lb' er tall brace height, and this baby is fast, with zero recoil and vibe. I love it. It points and shoots great. I' m averaging golf ball size groups at 40 yds. I wish bowtech would start stressing the shootability of their bows as much as the speed factor, because they shoot superbly, and the speed is a bonus.
Speaking of speed, I have not ran it through a chrony yet, but at 60 lbs, 30" draw, with a 390 gr. arrow, The Archery Program calculates it at 310.