This sort of disussion on microswitches reminds me of that old motoring saying
"LUCAS - THE PRINCE OF DARKNESS"
I dare say Lucas Aerospace et al probably fell in the same category
I think the new owner needs to pair up a couple of 'Dads Army' Wessex engineers with some young keen engineers to make sure the wheel doesn't get re-invented concerning quirky systems problems
Anyone know of any zero time Gnome engines in the UK for sale ?