I have a BroBucker and tried it in the bridge position of my Cort and I did not like it. Output was to low and the the highs a bit weak so I took it out put my heavily modded 500T back in. I measured the pole screws at 50mm and that is for the neck position , not the bridge. I put it aside for a few monthe and decided to use it in the neck position of my Epiphone SG Korina. First though I changed the center magnet to a RC A8 and added two half magnets to the outer sides , like Gibson did with the 500T. I put a 1/2 RC UOA5 on the pole scrw side and a polished 1/2 A5 on the stud side. The outer magnets are magneticly opposing the center RC A8. By doing this the output is increased substantially. I installed the BroBucker into the neck position of the Epiphone SG Korina with the pole screws facing the neck and the two coils wired in parallel and man this pickup sounds great and has found a permanent home in that guitar. It brings out the Korina bodys resonance beautifully and also brings out a bit of bridge harmonics and has a good high end. I hope this info helps somebody , good luck to all.