I tried a set in a 76 custom with maple neck/fretboard and hated them, could not get them to sound good no matter what I did, I replaced pots 500k and caps, neck was mud just very dark, bridge sounded better in split mode vs HB, mine have gold covers though maybe that made a difference, I replaced them with duncan WLH set and perfection.
I swapped them into an ash HH strat and much better but still kinda dark even with a treble bleed, they sound better set real low and screw poles raised on the higher strings, they sound great when Luke plays them, not my fav dmz pickups even a super 3 sounds more lively. I will be selling them.