Yeah I have even built one guitar with a pot to blend from coil to humbucker and many other left field rigs.
The problem is I now go back and pick up a guitar and forget what functions they have.
That is a good case for a push pull pot as I will know that it is a coil split.

I was looking at the options as it is a jm kit with 5 way, one vol 2 tones and I am disguarding the middle pick up so I have a pot space a switch points free.

The idea of splitting humbucker is so I have a duo duo sonic (call it a quad sonic perhaps?) But this model will also allow me to use a 2 point trem, which none of my other guitars have.
(I have a Strat and an Ibanez with 6 point and two jazz masters with jazzmaster tremolos and tele/ surfcaster with a bigsby)
I have a Duncan invader for the humbucker which when split gives a P90 ish sound that is more pleasing to my ear than a standard P90.
Still undecided on a single coil at the neck, have a Kent Armstrong lipstick in the surfcaster which I love but even split, I think the invader will over power it.
So any recommendations on a not too expensive neck coil that can keep up and still give a nice surf like tone... I am all ears.