grooveHT":25pu3v9i said:
Yeah, I believe the 2 and 4 positions are probably inner and outer coils of the humbuckers, in parallel. That gets you the stratty/teleish sounds, but part of the key to those sounds is the coils being in parallel, as opposed to being in series, as they are in positions 1/3/5. In most pickup configurations, series will be stronger than parallel; parallel sounds a bit weaker/thinner/more single coil-ish, which would explain your volume drop.
Well, to isolate just the inner or just the outer coils, you first have to split the pickup. And the vast majority of switches, when combining the neck and beidge pickup positions, combine them in parallel.
Unless Suhr's dreamed up something new, his switching schemes auto-split the humbuckers in positions 2 and 4. In those positions, the switch also adds a ~500k resistor in parallel, to simulate a 250k volume pot. That may be the simulation that the OP is thinking of.