Mr. Grace is a fantastic person to answer questions and to deal with. I actually acquired a 6330 over the winter and in one of our conversations i mentioned to him that I had one and he ended up wanting it. The look of the 6330 is absolutely amazing and I had wanted one for a while, but my stroke is not very conducive for a blade putter like that. We worked out a deal and he explained to me why you could no longer produce the 6330, definitely a bad deal for him. The 6300 is a very cool blade putter also. That 4 diamond is sweet. I have two different 3 diamond custom weld plumber necks with one being a widebody. Have a handful of slant weld neck's and F18,f22, f35, NYC Tours also. It all started with me in the fall of 1994 after Nick Price won the PGA Championship and I received my first Bobby Grace a Fat Lady Swings. Needless to say when he went to the radial face is where I feel his putters made the absolute biggest jump and really separated his putters from everyone else's