Garrison Guitars

Not being a materials engineer I may be way off on this, but it would seem the the two materials, the glass composite braceing and wood would have very diferent reactions to changes in temperature an humidity.

I would think the wooden top (unless it's plywood) would experience a lot more movement than the bracing would as the glass composite material would be very stable and relatively unaffected by changes in temp and humidity. Which leads me to wonder how stable the joint between the bracing and wood can be. Will this flexion eventually lead to breakdown of the joint? If the ahesive is flexible enough to move how will this affect the guitar after years of string tension and use?

Anybody have a thought on this?