So, I had a particular bass that sat in an uninsulated crawlspace for almost 6 years (I won't get into the details of why) and it endured everything from brutally hot 100+ Summers to -30 temperatures in the Winter. When I finally dug it out and started playing it again, I noticed that the tuning was remarkably stable... to the point where it can go almost a week without needing retuning and I have never needed to adjust the neck on it... EVER. For years, it has been rock-solid. All of my other basses require attention periodically, some more than others. I know people talk about when an instrument's neck "settles in". Is it possible that the wildly fluctuating conditions that it endured caused the neck to settle in to a ridiculous degree? I can't think of any other explanation. Maybe there's a luthier or two out there who could chime in on this. Could "weathered" necks be more stable or might there be other factors I'm not considering? Thanks in advance!