Bump Jump Putters

I was playing at the Callander Texas Scramble Open yesterday and the guy who designed the above mentioned putters had a little demo stand next to the putting green. I was quite impressed with these putters, they put a terrific roll on the ball. My only grumble is the head design determines the weight, you need to add weighted tape to make a heavier design if you prefer the look of another model. Anyone else encountered these putters?