Ok, I have been looking at replacing pickups on my Yamaha, and after mucho research and a couple of other threads on the pickups forum it looks like I am going to have to go with a completely different pickup variant than stock since Yamaha - of course - makes some sort of oddball form factor that nobody has a drop-in replacement for

Good news is that the pup cavities are friggin' caves and I will have no problem fitting standard J bass pickups into them.
What I am wondering NOW is whether or not I might have a problem with the string spacing ALSO being 'non-standard'. I would hate to go through all this comparing of tone, output, yadda yadda just to find out that the pickups I chose don't line up with the strings and I am getting uneven output from string to string. Could this possibly happen? And if so, would eliminating all of the pups with the separate poles and going for one with a rail eliminate the problem?
Thanks for reading...