Now have the Inj. neck in middle position. Put both on some 5mm plastic spacers. Now they are veeeery similar in output to the stock bridge humbucker.
I used a four-layer switch (though I‘d only need two..) for the following combinations:
1 - neck
2 - middle
3 - neck + bridge
4 - middle + Bridge
5 - Bridge
There’s now splitting or other fancy stuff involved.
Cool simple set up.
I found that with some guitars, middle solo does sound similar to bridge + neck, especially since you have the brightest pickup in the middle position.
No idea how the bridge + middle sounds with neither pickup split. If you like it, great, leave as is. When I had set ups like this I always missed the sparkle on top. Since you have a 4-layer switch you could split both pickups in that position for a very distinct sound compared to the others which is still humcancelling - that's probably what I would do. EDIT: check the polarity of the coils and make sure that the right coil of the bridge pickup is active in the B+M position.
Cheers Stephan