OK, I really did try to keep things neat. I had CT leads enter the GEM from three separate points, depending on which panel or subpanel the circuits were on. However, with 32 circuits, and over 64 wires, it gets pretty messy. For the most part, I was able to keep the channel wiring to two per circuit, although for a couple of the 240V circuits I may have run both leads to the GEM, and on one circuit I needed to combine two channels with the CT40s from different panels, so I did the combination two wires per hole for one place on the GEM.
Here is how the GEM ended up looking:
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a very close-up view:
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The cover was finally placed, with great fanfare, upon the GEM:
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Now, yes, it sounds easy enough, but of course it didn't work out exactly like that in the real world. You see, the cover, and especially in this case, must be held on by four screws. BUT, they're not just any screws, they are microscopic screws. So I got up on the ladder, repeating the mantra "Whatever you do, just don't drop the screw." So the bottom one went in nice and easy! Up to the top (opposite side) for screw #2. So while simultaneously pressing on the cover, holding the screw and screwdriver, and lining up the holes, yes, you guessed it, I dropped the screw!! Now, looking for a needle in a haystack would have been ten times easier, as a needle is 100 times the size of the screw. And of course I had to stop holding the GEM lid on, while attached with only one screw, and grab another one I hadn't lost yet to install in the hole to keep the internal wire pressure from snapping off the GEM cover base. Then I was able to spend ten minutes looking through dust and everything else on the floor to finally see the glint of the little silver screw. And after all four screws were in, it looks fairly nice.