Well that's cool!
I did do a small amount of grinding, where the hardened face was mushrooming out over the sides, and I could see some hairline cracks forming. I then radiused the edge so that it wasn't sharp and brittle. I used a sanding wheel on my angle grinder, and made sure nothing got even remotely warm. That's definitely all I am going to do.
It rings pretty well, except for a dead spot above the crack on the heel, but I think that's an area I can avoid pretty easily. As far as rebound, I haven't tested it with a ball bearing, but it feels pretty good with very light taps from a very small ball peen hammer (less than 8 oz). I think it will do nicely for me.
Thanks!
Dune