Hayden: I shoot .500 Axis shafts out of a 50# ACS, a 47# Libertry Chief, a 47# Robertson longbow, a 48# Bear TD and a few others. I cut all my arrows to 29 inches Back of Point for my 28-inch draw and tune with point weight. (I also built out the side plate of my ACS a bit, which is cut 3/16 past center to start.) The up front weight varies from about 200 to 260 grains.
I have some 55-60# 5/16 forge woods tipped with 125 grain heads that also shoot well out of all of those bows, though a little slower because the overall arrow weight is heavier. Also have some 50-55# 11/32 cedars that work well.
Usually can shoot the 5/16 shafts on the bows that I have the nock height set for theAxis shafts. I need to raise that nock height a tad to shoot the 11/32 shafts.
Not rocket science. You'll be able to figure it out. God luck.