The reason i asked is, i shoot 3 under. I've been workin on shooting like Rick Welch does but i like to anchor with my index finger in the corner of my mouth and thumb around my jawbone. I do like the feather to the nose idea, it seems to help. I was tryin to get the feather on the nose, jawbone, and index finger in corner of my mouth but could'nt get the feather to touch with 3 fletch. So i just 4 fletched an arrow to see how it would work. I fletched it 75x105 and it seems to line everything up perfect. I shot it a few times off the porch but wont be able to tell for sure till in the morning. That makes a triple anchor and i can use all the help i can get.