Great set...my favorite Duncans in a Strat. Did you reverse the black and white wires on the bridge pickup? It'll be out of phase with the neck and middle Surfers if you didn't. Also, in order to get humcancelling when the middle pickup is combined with the neck or bridge pickup, the locations of the neck and middle need to be reversed: put the neck in the middle and the middle in the neck. Great set though! Lew