I have 3 basses in the same room. a jazz bass with maple neck rosewood board a p bass with maple/maple and a peavey 5 string with a graphite neck (obv uneffected) The room is not air conditioned and it sometimes get a little humid. The jazz bass neck sometimes bows an insane amount that when I pick it up it looks like a c almost. The p bass neck is almost never effected. I turn the truss rod a couple times on the jazz and it seems to even it back out but I am worried I am going to break something eventually. is this normal?