TFOX I agree the specs read that way and they would match the charts. I found that the 350 were hard to tune with 100 grain fixed blade broadhead but when I went down to a 400 spine they tuned right up tight. Just my opinion but I would not recommed them for someone shooting less poundage with a 28" shaft using a 100 grain broadhead. Field points are another issue and they shoot fairly fine for my set up and they would for his but FBH. Just my .02.