On the steel magnum e-panel I'm working with this week, the nested 3/4 knockout on the top left wouldn't budge for me without taking the next ring along. Anyway these could be stamped a bit deeper?
Keith
I will pass this on to the Engineers and the Sheet metal house.
Ryan
FWIW: I did the same and bought a washer type thingy at Home Depot that reduced the hole size.