Kip,
I'm up in Durham, between Freeport and Auburn/Lewiston. about 45 min North of Portland. The "interference" I was questioning was the electrical type, so close to the frame, I would wonder if the bike would "behave" differently with an external wire. Not saying it's bad, just wonder if there would be a difference, I'm sure you've had the pleasure of touching a plug wire on a running engine! My last "touch" was a MSD crank triggered ignition, i seriously thought I was gonna Pee myself!! LOL
Mac