I recently switched to a thumb release. I bought a 4 finger hook release basically because its all they had in my price range and I just wanted to try a thumb release. Now that Ive been shooting it a bit I know exactly what I want and Im shopping. Without a rotating head a thumb release will twist up your d loop a bit but I see alot of high end thumb releases dont have a rotating head to keep the caliper from twisting your D loop. So...is a rotating head a gimmick or purposeful?