Hi Ianmacd,
You say, [in relation to the funny wiring] "Its an old practise. Just because it hasn't been done for years doesn't mean to say you won't still come across it."
Can you try to explain; what is the purpose to the way this wiring is, why would it have been done like this? I have no idea at all, but i would like to learn [just in case i see anything similar]
Would it have been someone trying to be clever, or is there a proper reason for it???
Thanks all.
john