I've opened them and closed them a pretty number of times. If you be careful enough (which one must be, for how beautiful these things are) i don't think you'd be screwing them over too much. On an additional note, most of these hardwoods can keep up.
I don't think doing that it will be easy... the modular thing. Though this idea... is interesting enough. Yeah. If we think over it a bit more... some kind of lock and twist module (like one of those for the motherboard/processor thing... EMU could make a startling addition. The sound and acoustics are there, and everything else is just right. An easy OTG hot-swap would certainly add to things... and Foster will stand there, just watching... watching why they didn't do it... Just like they keep staring at those aftermarket T50RPs.