Thanks Dennis, I've been having some luck with some tests using Pear branches (these are small pieces). the pear doesn't want to naturally warp, so I have been wrapping the piece in a wet paper towel and microwaving for 2 minutes or so...more if needed. I tried letting it dry after that and found that the warp "flattened out" by the next morning. So I have now been trying "dry" microwaving in short 30 second bursts at low temperature after the initial "steaming". not quite there yet...but getting close. I am also going to try microwave steaming, then covering in desiccant beads try dry. The wedging...or cloths pin idea has come up in conversation a few times....but I haven't tried it yet. I'll post my progress.