the guy with that Lee setup is a genius. I've got a few ideas on how to fix mine up now (the girlfriend shouldn't notice one toy being butchered for science!)
edited to add,
OK, I used some thin cardboard to make the spacer in the back of the Lee primer tool. folded another piece around the primer tool to cover the tube when in place, and then put another piece of cardboard between that wrap and the tube (so 3 pieces of cardboard in the back and one in the front. Hockey taped it together and put a piece of thin clear plastic over the exposed area of the primer path (cut to fit). filled the tray with primers, inserted tube, and placed against my tumbler (both the Dillon and the Midway worked equally well), 100 primers in about 20 seconds of vibrating. Rotate the tray a bit and hold on an angle, and away it goes. half the time and effort (at least) of loading by hand. Using the clear plastic over the pathway you can watch to make sure each primer drops in the right way too. I'll try and take pics tomorrow. I tried using the vibrations from the tumblers to flip the primers in the tray, but it's too much. If I can salvage something from the old "toy" box, I might be able to get a speed controlled vibe mounted to the bottom of the tray to do everything. we shall see!