So I'm changing necks on my MIM PBass and it's obvious that I'm going to have to do some "work" to get the neck sitting right. I've already tried raising the bridge to as high as it can go and tried an extreme shim, but the strings are still too close to the fretboard. I'm guessing that the neck heel is too deep (thick), or the pocket is too shallow. I'm wondering which to sand down, the neck heel OR the bottom of the pocket? My gut tells me that since I'm dealing with a Jaguar neck on an MIM body, that it would be better to modify the pocket, since the MIM cost me less than the Jag, but I was hoping to get some opinions or suggestions. Thanks.