Would it be any different if all three were working in the same circuit? So that there was no chance (unless two are blown) of driving down the road with one centre light??
My Discovery has a Spot and a Fog on it, although they are wired together they could easily be independant as the fog could be used in different conditions (not just for high beams), they're also wired directly into high beam (no switch) as i think thats the most stupid law around.
Cheers
Will

