Alright so my current specs of my bow : VXR 31.5 at 30in DL and 70 LB. I have Easton Axis match grade arrows 300 spine at 31 in length with 5.5 in wraps, blazer vanes, nokturnals, 50 grain brass HIITs, and 100 grain broadhead/fp. This comes to around 520 grains. I'm worried this is a little too heavy, and I'm wondering if going back to the standard inserts would be best (roughly down to 486 grains then). What do you guys think of this setup? Any advice?