These are some great broad heads and with the weight system you can surly find the correct F.O.C for you. I shoot them at 150gr glued to a end of a 65-70 Cedar Shaft, they fly great and I personally like the single beveled heads. There is a lot of new broad-heads on the market today some good some not worth going to the recycle bin's but Bear Razorheads have been tried and true from all over the country and these New Razorheads are built with the same Quality you would expect from Mr Fred Bear himself.