VFT_MD:

Although 280 isn' t bad for 406 grains, my VFT is 291 with a 405 grain arrow. My VFT is 70.5 lbs, 29" draw, Bowtech Hush Kit, String Loop and Peep, and GKF Mirage dropaway. Something must be different just a little. As I said above, I also have a 367 grain arrow pushing 306 fps. I would say those are pretty good speeds/KE. I hope you can solve your issue, if there is one.