I have survived long enough to remember playing when fast greens were in the 8 range and everybody thought they were lightening quick. People actually putted off greens. But I have worked with enough greens' committees to know that we won't be able to turn the clock back, even if we want to because players have seen how fast and smooth modern grasses and techniques allow supers to get their greens and the members demand it. The tougher issue is keeping that demand from compelling clubs to increase speeds to ridiculous extremes. At some point, turf health is jeopardized. Additionally, for non-professional play putting becomes uncontrolable and the pace of play is harmed. Of course, this also eliminates some interesting hole locations. The pros putt on greens in excess of 12 or 13 some weeks. Truly absurd for the regular game. 10.5 really pushes it in my experience. Incidentally, posting stimp readings only feeds the frenzy.