While working last week at our local golf course I came across a guest who had a putter with an enormous head (I still use the McGregor Response putter, and the head on this putter was bigger than mine. The guest gave me the name of the designer and I listened while he pitched the merits of his Black Swan putter, which he says can make anyone a better putter. Is there anyone out there who has experience with the Black Swan or the Black Hawk putters? I enjoyed the sales pitch but would like more feedback before exploring it further.