Sushi,
Please no more stories about your soldering in the nude.
I think these might be considered 'family' forums.
The banana connectors i have (or most decent ones for that matter) come with a protective covering that slips on over the plug after the soldering is finished so you should never have to touch the soldered wire/plug again. I used Nitrile gloves during the soldering process to keep any skin oils from coating the surfaces. All surfaces were cleaned with a 99% isopropyl alcohol before starting and i used a non-lead, conductive silver solder. It takes a bit more temp to get the silver solder to melt but the non-lead issue was big with me, i can't imagine why.
