My 962s have a stamp on the 6 iron.  It looks more like an etching than a stamp.  I did register them with Titleist.

Deno

Should be the same as the driver tip, .335"

Doubtful, buy ones with a stock shaft, reshaft it then sell the pullout to get some money back??

tommy l

I think the best putting tip would be to dial in your distance with your putter.  For example, unsighted golfers have a stroke for every distance the coach tells them.  A very good drill would be to get consistancy with your stroke.  Pick a distance…