Thanks for the quick answer!
I've bought the bridge position because it was the only one available at the time(i live in south america

) and installed originally on the bridge position. Later i bought the mman and installed in that position, so THEN i moved the quearter to the neck position being unaware of the dimensions mismatch...
I think that changing the space between strings could be bad for playing in the higher frets on the g string...
Another question:
i found interesting the answer of walterw of installing the pup in angle. Do you know how affects the sound installing it that way?