Alright, here's the deal. I've been shooting axis 340's that are 28" long with a 100 grain point. I haven't seen any problems at all, they are flying great. But the easton chart shows that I should be shooting the 400's. My FOC levels are good at 9.4 (100 gr. point) and 10.7 (115 gr. point). Is this a problem? please help. They are shooting at 272fps. Thanks.