Wow that plug connector (UMS cable) is very close to the hex of the plug.
I wonder if they are able to be pushed on to far? And that would be a
short. A easy path for the current to go and bypass the filament.
And short drains your power system very fast.
And can be dangerous to with systems (voltage regulators and batteries)
over heating.
I realize you may already know all this but it may help another modeler.
So much for taking a break.