Quote Originally Posted by bluesman7 View Post
I suspect that when you were getting close to finished the edge was deflecting away from the wheel so you were taking metal away from the area behind the edge, kind of like what happens if you hone a full hollow with too much pressure.

I support the edge with my fingertips directly behind the edge when things are getting thin. I get close to finish with 60 grit, and very close with 80 grit, then just clean up with higher grits. The coarser grits cut cooler and you can make progress with less pressure.

An 8" wheel should have a plenty big enough radius to keep from hollowing out the center if there is no deflection at the size of razor that you were making. But yeah if you're happy with a heavier grind use a 10".

Good first try!
Will try that next time. Will use the 10” wheel and give myself a little more wiggle room.

Any site ls that give an idea of wheel size/blade width and the hollow?