Is something REALLY BAD about to happen? This bass belongs to a friend of mine who asked if I wanted to try playing one in their group. I've been playing it for about 9 months and just noticed the neck joint "issue" shown in the attached pic. The back of the neck joint looks like the neck is starting to lift out of the joint (finish cracking, bare wood visible above the joint). There's also a small displacement behind the neck. It's VERY small, but the finish has cracked as a result. The cracked finish makes the pics of this issue look much more dramatic that it looks in-person. A little history: She bought this bass used from a friend (may have been her friends' son's bass, or something), and I have a feeling that it hadn't been played in a LONG time. The tailpiece had been whacked hard enough that the tailwire had come out of the grooves, and the bridge and tailpiece were almost an inch off-center, who knows how long it had been like that. I started playing it about 9 months ago, got an adjustable bridge for it, played for a month or 2, switched to nylon strings, continued practicing and doing a few benefit gigs up until now. Since I've had it, it has never been dropped or fallen over. I do remember, about a month into playing it, after installing the adjustable bridge, I thought I was going crazy, but it seemed like after I set the bridge up to what felt right, over the next few weeks I kept having to lower the bridge to keep the action where it was. If that was when the neck joint started separating, it seems like it makes sense. Shortly thereafter I switched to weedwackers, just to try them. Didn't switch for any particular reason, other than to try them, but it seems now it may have been fortuitous. I guess my questions are: If I stay with nylon strings is this likely to stay the way it is? or likely to let go (in the middle of a gig, or course)? Was thinking of going back to steel (or other higher tension) strings. Seems like a BAD idea until this is fixed? Could prolonged lack of regular use, followed by several-hours-per-week type of use cause an issue like this to "just show up"? If I stay with nylon strings, and do nothing, might it do more damage? (other than the obvious neck joint opening up). Would cabinet/furniture carpentry experience equip me to fix this myself? I have torn-down and rebuilt large mortise joints (fret saw/shim/sand/glue work) in the past, but I'm not familiar with whats going on "under the surface" of this joint. Is there any obvious way to fix this (or keep it from getting worse) without completely removing and re-setting the neck? Thanks in advance.