Comment by ssl-3

You've got a good approach.

Also: What banana plugs did you wind up with?

I've been looking for usable, insulated, stackable banana plugs that work with 12 AWG wire for over a decade.

For a lot of my audio things, I can get by with MDPs from Pamona Eelectronics. They're insulated-enough, stackable, dual-banana plugs on 3/4" centers and where they work, they work very well. (I don't recall if 12AWG is within spec or not, but it can be made to fit.)

But they do not work on audio widgets that do not have 3/4" spacing, like my aging Lexicon receiver and its great quantity of binding posts for speakers.

I don't care if they're glitzy or fabulous-looking. I just want functional, insulated, stackable single banana plugs.

(The common marketplace is full of elaborate gold-plated non-insulated things. I guess they're pretty, but they're a hazard and nobody will see them again soon at all if everything goes well. Their function-follows-form beauty is only detrimental.)