I shoot Easton Axis 400s.

You can get 9/32" screw in points in 125 grain weights.

You do not need to, but you can also get some NAP universal brodadhead adapter rings (U.B.A.R.) that they ship with most of their broadheads now for use with "skinny" carbon arrows. You can use them to back any broadhead if you are concerned with cavetation or whatever.