I shot last bow season Legacy. It was a very good bow season for me. It shoots 390 grain arrow at 68 pounds and 30 inches draw lenght 282 fps. I think you should get with lighter arrow and your draw length to be at 275 fps.
I just bought Hoyt's UltraTech Cam 1/2.This bow with the same specs shoots about 10 pfs faster than my Legacy.
This means with the same set up like Legacy, my arrow's speed is 293 pfs from Hoyt.
Finally, I can get more than 70 pounds of KE.
Vodek<img src=icon_smile_cool.gif border=0 align=middle>

WZ