[bridkarl]

I’ve got a motorboating issue also. Arrgh.

Anyway, Caig stuff works well. I have found it best to spray some into a plastic dish and then use lint free q-tips - they make them for watch repair and salon use. Spraying from can onto switches is no bueno. Use as little as needed directly on the contacts. I also can spray a business card and work it carefully under contacts - like relays.
I don’t especially like the long black spray tube that comes with the can.
I’d read the product sheets - D5 and F5 have different applications - I think that F5 is more for fader cleaning like for pots as opposed to switches. I’ll stand corrected if I’m wrong on that.