3 Under. Used to shoot split, chin anchor, olympic style as a kid. Love it for shooting with sights. Hate it for gap/split vision shooting. For some bows, I'll even anchor up on my nose for a while if the gaps are still over 15" or so. Tried split a few months ago & I couldn't keep my glove on -- the string took my glove right off my fingers at every shot. Never happens when I shoot 3-under. I'm sure there's a logical explanation but I haven't bothered to figure it out.