I wonder how well an RWRP middle will work in this set anyway, given the huge DC difference between the bridge and other pickups (13k vs ~ 5.6K). It will work with the neck, but perhaps it is a deliberate choice by Tim. I have a set and it doesn't bother me (then again I lots of Strats that don't have RWRP middle pickups). If you just got them, I would have a word with Tim to see what he recommends.