So I have this parlor from the early 1900's that needs a reset but the joint is full mortise a la violin family. Any thoughts about how to separate this type of joint. I've included photos of the guitar in question as well as photos of another, which has the same joint, but was apart when I got it, for obvious reasons. I was thinking of removing some wood from the end of the neck so that I can get some steam in there, Maybe drilling a slot between the neck and headblock? Anyone with suggestions would be welcome and appreciated.