[Bob Branstetter]

I know you don't want to hear it, but I don't see how anything other than a neck graft or a total neck replacement is going to give you a long term solution. I assume you are talking about a long scarf joint. The graphite bar and epoxy will make that very difficult to do, if not impossible. I've never been a fan of scarf joints on bass necks. Even if you can do a near perfect job, over time those long thin edges of the scarf always seem to chip away or snag on something (Think wood splinter in your thumb!).