Lead Tape and Toe Flow

I would have thought the tendency (for SBST action with Toe Hang putter) would be for putts to leak right! Unless you are a lefty of course! Could be more a wrist/hands problem - or line-up. What size grip do you have? Going to mid-size took my flappy wrists/hands out if the equation.

Could well be time to simply try a Face Balanced putter! I have several, but all Centre-shafted and 33". There are some Anser style ones available though.