I have shot muzzys for a couple year and killed deer with them, but when i got my new mathews i couldn't get them to fly right, i came accross the blood trailers and they fly great....until last night when i shot a doe, i may have hit her a little up some around the neck area...i waited at least two hours before i went to look for her, i came across my arrow broke in two pieces with blood all over the arrow but get this...no blood any where else....what do u all think about them damn blood trailers????