I ground back the heel of my 5/8" bowl gouge and I have to say the results are pleasantly surprising. The cut is definitely smoother as I go down the inside of the bowl. My transitions are almost never abrupt down there, but with a fat heel, I realize now that I have been coming in a little aggressively nose-in all these years. Last night I rounded over the heel more aggressively, and I find it much easier to cut down now.