GuitarBilly wrote:I think you just need to reverse the position of the Red and green/ white wires on the neck pickup, then the grey wire has to be moved to the new red wire location.
I don't think that will work in this case, because what makes the coil split happen, when using a Strat 5-way, occurs only in positions 2 and 4 of the switch. Positions 1, 3, and 5 on a Strat 5-way, I don't see how you would ever get the coil splitting.
(Tech talk: what makes the coil split happen on a Strat switch is having two switch contacts connected to the output, not just one. On positions 2 and 4 on a Strat switch, two switch contacts are connected. (That's how, when switching the pickup hot signal, you get for example neck + bridge.) On positions 1, 3, and 5 on a Strat switch, only one switch contact is connected to the output.)
With a superswitch, you can do anything, in any position.

Like on your Suhr. I think you would need a superswitch in order to get that set of coils active in those switch positions.