About a year and a half ago, CoreyT posted a video about a solution to some of those pesky seasonal changes we get in the North, and it seems to work nicely. I actually have been using this with both my acoustic and electric guitars...
I started sticking a single Planet Waves humidity pack in my electric guitar cases for the purpose of combatting the humidity changes. The chemicals in the pack actually prevent the humidity inside the case from falling below around 40% RH or higher than around 50% RH. After a few months, the packs themselves dry out in winter, but they last a lot longer in the spring and summer for obvious reasons.
In any case, they use a chemical technology that releases moisture into the case in winter when it's too dry, and absorbs moisture when it's too humid.
Most PRS electric guitar cases have an open area near the neck that's a good place to put one of the pouches, but the PS guitars only have room in the headstock area, where the thing still seems to be effective. I simply place a pack so that when the case is upright as it is when stored or carried, the pack rests on the bottom of the case. It doesn't touch the guitar.
Anyway, I haven't needed any neck adjustments since I started using them.