is a 8.25 to much to be safe I am getting a buzz off my lower limb at 7.5
You should be good there, since I've gone 8.5"-9" with good results.
I wouldsay 8-9 depending on how the bow likes it.
TYREE
If you do find a side plate, and you do away with the Premier sight, there are guys here that t need parts from it. One in particular is the nylon set screw for arrow adjustment.