Is that 400 gr. weight including the tip? I'm shooting a 500 grain total arrow weight at 29" with my 125 gr. heads at 70 lbs. but I'm trying to penetrate some pretty tough critters (brown bear, mtn. goat). A total arrow weight of 400 gr. for your set-up on deer would sound about right or maybe even a bit light for a 29" shaft. If you're shooting a 500 grain arrow with 60 lbs. draw, you could definitely lighten that arrow up and shoot a bit flatter/faster.