I said i wasn't going to post anymore,but can't help myself!
Compounds have came along way in 40yrs,but it took most of that for them to reach 300+fps.
And how long did it take the xbow once they went to a compound system? And how much further will they go. As the demand grows so will the speed,remember they don't have to over come the limit of the shooters ability to draw and hold thier weight.
So Where does technology take them?