Is your front brake switch that in-line one, giving you a two part front brake cable in effect? I don't think I've ever heard anything good about them. That's what would have been stock on my Triumph, but when I got it in '87 it had already been changed out for a 1 piece, and I recently had a new one made to fit which is also one piece. I just turn on the brake light with the rear brake.
For a long time my R65 front brake switch didn't work either, but it started working again. What ever. I'll probably buy a new one some day.....
Hope you had a good ride! I put in a couple hundred miles last Saturday on the Triumph, having fun on curvy roads with my Airhead friend Keizer Dave on his beautiful R75/5 Toaster. Luckily SWB!