Spark plug gap with msd

I am running a msd 6 al box. I have been gapping the plugs at .050. This seems to be the max gap that the tip of the plug can be massaged to. I run champion 404 's . I have tried to gap to .060 , even with my special " gapping" tool, the tip can't retain the squareness to the electrode. I also retired all oil filled coils. I run an ecoil.

I was hoping someone was going to mention the tip issue, and that's probably why they don't recommend going over what they state with the gap.
It was close getting them to 50 and have the electrode where it needed to be.