shinobi, I say... pfffft. Most people use super-glue like adhesives to affix vanes these days to shafts, and I just don't think it's going to matter in your case.

Now... I'll tell you from experience: don't STORE your stuff in something like a garage -- not because of the humidity, but because of the heat. It's amazing how much heat can build up in an enclosed space like a garage or attic. Limbs can and do delaminate (come apart). Don't ask me how I know.

Same goes for keeping your bow in a car or trunk in the summer.