Bill,
I know what you mean about certain woods cracking. I made a red palm americana rollerball, it cracked once, i disassembled, and filled the cracks with CA, refinished, reassembled,and about 2 months later new cracks appeared (this pen was NOT stored in a hot humid environment). Needless to say I kind of gave up on this pen, so it has cracks, it's a pen I keep in a convenient location.