Good players don't hit "high floaters." Elevation is a function of backspin and clubhead speed. Sure, you can flip an iron shot a bit and hoist it, but it won't help you keep a ball on a tournament hardened green. It will help you hit it back over the trees from another fairway!
Good strikers stop the ball on hard greens by beating the crap out of the ball, maximizing the spin that is a by product of good impact conditions. If the green is hard I am always going to hit the less of any "tweener" I might have.
Full swing (high clubhead speed) + solid impact on a tight lie = high spinning ball flight that will hold all but the most severe greens.
Venturi quoted Hogan once and I think about this all the time when playing approach shots. "Hit full shots into front pins so the ball stops and hit knock down shots into back pins and let the ball release from the middle of the green."
Of course I'm not talking about "Country Club" fast and soft greens. I'm talking about hard "I can't find my ball mark" greens.
"low spinners" (aka Trevino spinning wedge) with anything other than a lofted wedge really aren't spinning that much. Low shots by nature (ie; low 7 or 6 iron) are hit with a little "off speed" action which reduces spin and keeps the ball down a bit. The thing that helps these shots stay on the green is generally the wind you are hitting into.
