Report Anchored Putters Rules Change (Effective January 1, 2016) in Rules of Golf May 31, 2013 That had nothing to do with the definition of a swing. It only addressed the issue of the rough no longer being a factor in the pro game unless it was cut to more than typical US Open height. Note the comments from the last few US Opens prior to the groove change. The rough was getting so bad that no club was capable of escaping from it. By making that small change in the groove allowance they were able to set up courses which allowed the players to play golf again. This is just silly. My swing is the same with my Callaway Diablo Edge as it was 23 years ago with my TM Tour driver, despite the fact the the TM was probably less than half the displacement. The only difference with a hybrid is that it doesn't require the same perfection of swing that my 3I required, and the same basic adjustment was possible with a 7W, so that argument is shot down before it begins. At this point in time it's just sour grapes to start trying to compare equipment evolution to a change in the traditional stroke. All of the clubs you mention require that the stroke be made with the club held freely in the hands. All the new rule is doing is maintaining this consistency through the putter. Your swing may be the same but simple logic would tell you that a driver with sweetspot the size of quarter (rather than that of a dime) is easier to hit. You just applied the same rational to hitting a hybrid as opposed to a 3i. The statement was made that anchoring can eliminate the mental part of the game, I don't know about you but Ive NEVER played a sport that was more mentally challenging than golf (unless we're considering chess a sport) and whether your hands are swinging freely or not you still must read the break and speed of the putt... an anchored putter does not help with that. I also think that its just as much "sour grapes" for guys that don't anchor to whine and bitch about guys that do. If its such a freaking advantage then do it yourself. I don't remember Justin Leonard complaining about the need to outlaw metal or titanium drivers/woods, he wanted to continue to hit wooden clubs so because he liked the way they felt so he kept on hitting them.