Phew, thank goodness for that! As for an explanation...it’s anybody’ guess.Possibly, with your repeated switching, the switch contacts may be separating a little quicker and cleaner but that’s a shot in the dark really.

Doug
2011 Plus 4 in Rich Maroon

1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900