I was reading about reforming the large caps. I'm still not entirely clear on a rig to try it, and i've been rebuilding crt monitors and late 70's-early 80's arcade machines as a hobby for 3 decades. But a question I had, and maybe you'd know, is how is applying a low voltage for a while to reform a cap, different than just leaving it plugged in for a long time, then unplugging it and letting it draw down? Shouldn't they naturally reformat themselves during regular use?
If the caps are old enough, reforming them really isn't a thing unless you like the smell of a power transformer burning up. You might try this on a part only a few years old (5 on the outside). The easiest way is to put an incandescent lamp in series with the part when charging it. When the lamp goes out you're done. If it does not go out you're done also, except the cap goes in the waste bin.