[mrpogie]

One of the hardest things to keep from doing is undercutting the face of the plug where the wire goes. I try to lay off the pressure when I get to the center of the plug while I'm using the drum sander. If you look at the space under the line in the first view, there is maybe a little more than 1/16". The second view has got too much space under the line, the sides don't slope enough to get a good wiggle. The third view is how I keep looking at the plug to make sure the sides are even. It's better to go past your marks on one side or the other to even off the edges. It makes for a straighter swimming plug.