Aside from "whatever sounds good," any rules of thumb on output levels in a 3-P90 setup? Different pickup makers (those that even have a triple set) list different configs. Some list the same output as bridge for their middle position, others have the same (lower) as the neck. And then some makers have virtually identical output for bridge/neck on a 2-P90 set... Argghh.. seems that you usually just want the middle position on any guitar to complement but not wash out the bridge/neck pickups so you'd want lower output, am I wrong? Remember this is P90's so we're talking chimney cleans to bluesy crunch, nothing extreme.