I shoot a long draw, and you are definitely underspined at that set-up. With your draw, there is no reason not to cut them, at least a little bit. Even cut, you're going to need 300 spine, the shop can order them I'm sure.

FMJs are fantastic arrows, and I've killed deer with Slick Trick Magnums and Grim Reapers. The Slicks are my absolute favorite fixed head, nothing compares to them in my opion, and Reapers are just devastating. Currently, I've got 2 of each in my quiver.