I'm using 100 grain 2 blade Magnus Stingers with a cutting diameter of 1 1/16". The doe I shot last night left a blood trail a blind man could've followed. I'm not necessarily convinced that the size of the hole is always a major contributing factor to the size of the blood trail. I think the sharpness of the head, combined with exactly what arteries and veins are cut are really what determines your blood trail. So many people are concerned with blowing a hole the size of a baseball through a deer with a huge expandable broadhead, when they should be concerned with where that broadhead is hitting.