shokosugi
I've been experimenting at home today. I have a home made belly putter. I bent the shaft up and forward so I could try this arm lock style. I think the head is around 370g. I definitely seem to prefer a lighter head in this setup. I just plain make a better stroke with the hybrid than this putter.
But I sure don't need the 19 degrees of loft. Even after the forward lean it was probably 10 degrees. The ball was backspinning before it rolled. Nor do I need the hot face or bulge and roll!
Also I was holding it on the actual shaft. That really took the right hand out of the power equation. There could be something to that.