So, My bass has a one piece, hard maple neck. Recently (last 3 weeks or so) the playing got harder and harder. I took it to the local bass guru, who implied that the neck might be useful as a longbow

There was a big old curve, in other words.
I live in the northeast...long cold winters and hot,humid summers. Not good for necks, I guess.
I see that there are lots of neck construction possibilities; laminated maple, multi-wood laminates like Ibanez or Warwick, and graphite rods like Carvin.
What are your experiences with these other types of neck. My only experience is with the one piece maple.? Are they less likely to bow as the weather changes; no difference?
Maybe this is just something to live with? Just tweak the truss rod more often?
Also, besides the humidity control, are there are some other things to help prevent bowing. I thought that I could loosen the strings every day after playing, then tune up again next day? Does anybody do that?
Thanks for your help!