I recently picked up a couple of bodies online to experiment with. I want to try out the Mustang vibrato, as its the only mainstream vibrato that I don't currently have in my stable. I've got an ancient drill press and a decent dremel. So while cutting a clean hole of a large size won't be too horribly difficult, the two very precise narrow channels seem as though they'll be much more difficult. So, is there a reason not to just cut a single hole the store the two springs?