Hi guys, I've bought a roadworn 60s jazz bass body and decided to put my mim precision bass neck on it. I thought it was a good fit but after removing the pickguard I now see that there is like a 1,5 to 2 mm gap. It appears that the shaping of the neck and body is slightly different. I've played the bass a couple of weeks and I kinda felt like the tuning/intonation was a little of. I fixed that with a little better setup but after discovering the gap.. it sticks in my head. I feel that the bass is a little less accurate then my other basses. I checked with my tuner but also see that I'm way more demanding now with this bass. So my questions are. Am I crazy? And do I need to correct this and how?