I have seen some test on the Razor Tech ,MQ1, LX, Darton' s CPS,BowTech VFT & Black Knight........The Darton MQ1 and LX were striaght the Razor Tech was off some and while if BowTech was a little bit more level than they are man they would be smoking fast....I know they are fast but would even be faster.....What does this mean to the average archer? Nothing....So choose what you want and be happy about...Dont get caught up in all this junk