Ones defo a 70 MKII and ones defo a 70 MKIII, not sure about the 3rd... it's just a donor though and isn't fundamentally different to either of the others.

I've just received my electronic module, it seems fairly straightforward, cut the wire from the points to the coil and bin the points and condenser, screw the little unit on around there somewhere and join the wires?

So what is the trigger for this and how to I time it correctly?

Also I've got 3 coils to choose from, anyway of establishing which of these are good or not?

Cheers Gurus!