Back on topic.... I would like to "hear" more about this sound thing. I've noticed at the tour events I've attended, the iron shots of professionals often sound "thin" to me.
Hmm? I'm keenly aware of the Sound of Impact. It provides feedback on the line of compression that ball flight alone doesn't provide. I find myself searching it out. I find myself sometimes taking a stronger grip and High #3 Accumulator and a Snap release to compress the Horizontal Hinge over as small a distance as possible.
I think that the Old Range Balls don't deform like new balls and the line of compression becomes vague.