I've got a Cort Elrick RB5 that I'm really liking, but I want to upgrade the pickups. I'm thinking that either the Nordstrand Fat Stacks or Parallel DC's would really be sweet. But while they are (roughly) the same dimensions as my Bartolini MK1's, they are made for a larger spacing. So here's the question. Even though the Nordstrands are designed for 19mm is it possible to use them with 18.3 mm spacing? Are there other models that would work better? Thanks!