Uhm, I may be out of line hear, but screw the charts if those arrows will fly a fixed broadhead with great accuracy, who care what a chart says? (As lang as your not dipping below the 5 grains per pound minimum) I'm sure the deer you just blew a hole through is going to feel extra insulted because you strayed from a chart/program to bring him down.
If the Axis are working that good for you, why the need for a brand switch?

I am shooting the 340's at 65# pull myself, but if 400's are flying great for you- more power to ya.

I'm sure the 75/95's will work great if that's the direction your headed. Nothings better than confidence in your set up.