I have a GFS Lil' Killer in the bridge position of my Strat. I wired it up using Fenders "Standard Fat Stratocaster HSS" wiring schematic which works really well (keeping in mind the SD out of phase wiring as mentioned above). In the 2 position the bridge p'up is split and retains the "quack" in combo with the middle p'up. Also, I would suggest moving the middle tone control to the bridge p'up for more versatility if you hang in the 1 position as much as I do - a very easy modification. Move the white wire "to tone pot (middle)" over one to the post with the post with "green wire from bridge pickup".