Very interesting thread here! Only recently I discovered an alternative use for solder lugs as attachment points for wire bracing.

I used some in the cockpit area of my EIII in an effort to improve the scale illusion/

The double sided ones could make for ideal 'junction' fittings, i.e. where formers and stringers join and the wires have to be anchored.

Btw mustang, in case you have any models you'd like to show off, by all means!