OK, thanks. I searched but didn't find pics. I did find a post that said to check for it, fire up a cold engine and put your hand on the rocker cover to feel it. I did that—no tapping feeling. But when I put my ear within 3 inches of the head, I could hear a faint ticking from the left rear side, rear cylinder. Any farther away, and I can't even detect it (I have stock exhaust system). On any other bike, I would normally attribute that to a normal tappet sound. In fact on some bikes (Guzzis), if you don't hear some tapping, it is said that your tappet-valve clearance is too tight.
I don't want to beat this topic to death, but I'm hoping we'll all be a little clearer as to what constitutes a normal tapping sound vs. abnormal, and whether any tapping sound should warrant a rocker frame upgrade/replacement. After seeing the dremel job above, that is not going to be an option for me. Yes, I know it is functionally fine, but it's a hack-job from an engineering point of view. I would only accept a mod that was done with a jig. That's what Harley sells for reboring cases for larger piston, even though a hand grinder and a file would yield the same functional result.