The trouble with the 65 lb. draw weight is that you often wind up right in the middle of the correct spine for the 400 and 340 series Easton arrows. The 27" length is going to help, but you still may wind up just a little weak. Now that you already have the 400 series arrows, I would recommend just backing off the limbs a turn or so - to maybe 62 or 63 lbs. It isn't going to make much difference in speed - maybe 5 fps or so - but it could really improve the arrow flight and accuracy with the 400 arrows.

PS - Axis arrows are wonderful - expensive but worth every penny IMO.