Steve, do you have any info about the latest Vibram putter, the Summit, supersoft plastic, how does it perform?
The Summit is planned to be a stable putter at lower speeds (and/or less wind) than the V.P. Current thoughts are to design it in two firmnesses, but everything beyond the concept is still in initial testing. If the disc is released for general consumption, it would probably be in the late summer, early fall.
One thing the Vibram folks have impressed me with is their desire to get a product right rather than getting it to market quickly. (Their slogan is "Tested where it matters" and so far, they really live up to it. I will see if I can get approval to show off some of the testing that these folks do.)