Hey!
3 years and 13,000 miles ( unfortunately many in the rain) and I have not yet had an electrical problem with my ENGLISH electrics on the Cobra. Apart from regulator failure on my (American) alternator.
IMHO, attention to connections and earth points, plus following sensible practice like using relays for high-current items, will eliminate 95% of electrical gremlins.
'Course, now I will probably find I have no lights tomorrow!