This may be a no-brainer, but I was wondering if folks could enlighten me on which course of action is better. I live in an apartment that only has a window A/C unit in the bedroom. During the day, my wife and I leave the A/C off and the humidity in the apartment gets up to ~55%-60%. At night, we turn on the A/C, and humidity falls to around 40%-45% with the A/C running all night.
My issue is that I had the mandolin in the bedroom in the winter, where we run a humidifier to keep the humidity >35%. I never thought about moving it come summer. I noticed yesterday a fair number of very thin cracks in the fretboard. They're only visible at a certain angle and quite close up, but they're there. So, for the summer, would it be better to move the mando to the living room? The humidity is 50%-60%, but there wouldn't be nightly fluctuations with A/C. Thanks!