Is there a schematic floating around for Tiger wiring, but has the buffer as switchable? I've modded a Gibson 336 with a Super II, buffer and OBEL...the tapped middle position Super II with the buffer sounds perfect...but I kind of miss having the classic Gibson neck and bridge sounds - the buffer seems to alter it a bit. Rather than rewire everything again to just have the buffer on the Super II, I think it might be easier to just make the buffer switchable.
I tried to figure this one out. You could put a DP/DT toggle between the output of the 5 position switch and the input of the volume pot. The other leg would send the signal to the buffer.
However, when you remove the buffer you're sending your pickups to a 25K Log pot direct. This puts a strangle-hold on your tone. I can't speak to whether or not the 25k log pot can be substituted, but I suspect it would be another trade off. You'd get the direct to p/u line functioning, and lose the great functionality of the OBEL.
There are smarter folks than I here. That's what my futzing about has shown.