You could go with either 500 or 400,every bow will react differnetly.Is your bow center shot?The heaviest points available for axis is 125 gr.,but with broadhead collars you can use 11/32 points and or broadheads.They just add a taper up to the point for an easier removal from targets for field points or for broadhead use.I shoot Beman MFX Classic 400 with 100 gr. inserts,125 gr.point out of a 61#@27 longbow.It's not a center cut bow so I have to shoot around the bow.I'm not really familar with Epic's,they have changed some the older Epic's or the new ST Epic.They take different inserts and nocks compared to Axis and MFX.3 Rivers sells test kit for Axis and some other carbons.