I shot the Easton FMJ for two years. Killed two nice bucks with them, pass throughs on both. However this summer I noticed by grouping were getting bigger. I messed with my bow for months trying to figure out what it was. Paper tuned, bare-shaft tuned, tried everything, but still didn't have tight groups like I wanted. Finally the last thing I checked, which should have been the first, was spin my arrows, 7 out of 9 were bent. I've obviously never had that problem with carbon. Thus I went back to gold tip all carbon, slightly larger diameter shafts, but shooting much tighter groups.