Thanks everyone for the compliments.

GeorgeWest, The microwaving in a paper bag acts like a steam kiln driving the internal moisture to the surface. The bag retains enough water vapor to keep the surface of the wood from drying too fast and creating tension that brings on the cracks. I can see that after using the microwave to remove most of the moisture a low heat oven could help stabalize the remaining moisture.  Some people use a scale to weigh the piece from start to finish to determine how dry it is getting.