... for setup tweaks. Windows are mostly closed, heat is starting to be necessary, humidity in the house is down, and action started getting just a little high.

1/6 turn on each truss rod nut, let it settle for a day. I was in too much of a hurry on another bass recently, had to undo half the adjustment after a few days 

I really don't think it's that this bass is more sensitive to humidity changes than others - it's just that it can be dialed in so perfectly that any small change is very obvious.

I haven't tweaked the Alembics yet, but the Gibsons went plum crazy this past week. Necks thought they were skis.