[vj]

Angled hinge is the choice I make. I have experimented with horizontal and vertical but found they added to the difficulty of controlling the club face so that I COULD MAKE MORE PUTTS.

On a different note. The simplest stroke has the face of the putter square to the "arc" the putter head in moving in. This would call for an angled hinge (toward vertical) for a large arc and an angled (toward horizontal) for a smaller arc (By smaller I mean an arc more approximate to a circle).

"Face deviations must be nil in putting" Homer Kelley