Loaded up some .45s on the tray today. Having the nuts JB-Welded to the pan really does help. And I took the tip off the gun, it seems to really make it spray a tighter pattern and also lets it flow better and I didn't have any loose powder dropping out of the tube as I shifted and tapped the paint cup while spraying. I think that it works better without that little part.
Wind here today is not friendly though. I built a little spray booth out of a cardboard box that is going to let me get the job done during brief lulls in the gusts. But it's not nearly as much fun as a nice calm day. I still see some "Piglet" days in my future.
And as another thought.... I'm not going to modify my gun yet, but if that little electrode rod in the center of the gun were a bit shorter, I could get that tube just a little closer to the boolits and just spray em with a nice sweeping motion, rather than the current "fogger" pattern that is probably meant for wheel rims or motorcycle gas tanks.