I also put an 1/8 tsp in a quart (or smaller 2-cup) tupperware container and shake all the wads in it til coated very-finely. *
That completely stopped all tendency to pull those tiny 410 shot-filled wads up w/ the shot tube upon withdrawing.
powdered graphite would also work, but messier on handling components.
* There's usually enough residual mica in the Tupperware to shake two more loads w/o adding add'l.
The mica also collects a fine dusting on the surfaces of the wad guide to coat lightly on any missed wads.
Magic stuff.
It has been a long time since I loaded some .410 shells and I do not remember having trouble with the shot tube withdrawing the wad with the shot. But, using mica is a good thing to remember if I do have trouble the next time I reload .410.
I did find that I could not find a powder bushing that threw the charged I wanted. So, I use a universal charge bar. As delivered, the small cavity relative to the larger gauges needed for a .410 would cause erratic powder charges. I made a spacer to fit in the charge bar to move the cavity to be closer to the center of the drop tube. This helped alot with making the powder charges more uniform.
.410 is the only shot shell I reload with the universal charge bar. Bushings work fine for me for the larger gauges.
Unfortunately, I understand the universal charge bars for the MEC loaders are no longer available.