About the only difference in the speed with crossbows is they up the poundage and shoot lighter shafts. Where a normal poundage was 150 it is now 170 on several. Used to shoot aluminum bolts, mainly 2219 Eastons. Now everyone shoots carbon bolts that are much lighter. I agree with the company's thinking they have a market for the newest and fastest out there and some guys fall for that trap and have money to spend. Until you get a crossbow faster than the speed of sound the deer are still going to react before the bolt hits them. If you look at my thread on the old Tenpoint Titan you may notice the impact spot being a inch or so lower than center it is set up that way. First reaction to sound to a deer is drop, think about that.