for my 60lb predator recurve with 29 inch draw the arrows that fly the best are goldtip 3555 cut to 30 inch's with 100 grain insert and 175 grain broadheads, these arrrows weigh in at 535 grains, they also spine out at 32 lbs on stu's Calculator yeah I think its weird too but they work very well. For my moose hunt this fall i will be using Carbon Express 250's cut to 30 1/4 inch with the 100 grain inserts and 175 grain broadheads, these weigh in at 640 grains and fly very well also