Oh geez i know exactly what you mean i put a little time into mucking around with auto-weighting and its some next level pains in the backside, i was going to come back to it when i’m happy with my re-targeting and modular rigging. I was thinking to maybe make some template joint topology to copy weights from and have the user scale/position them to fit whatever they are working on before hitting an apply button to transfer the weights? Dunno if you tried that kind of thing but i figure it could be worth a try!