mengler- yep that's basically the same way I did mine. I did preshrink some of the wrap n zap yesterday so I plan to try more bowls and see what happens. Also, going to make sure they are washed in cold and dried on low or ever air dried.
shasta- one of the problems is the fabric being in the microwave for too long. The batting so no more than 2 mins at a time and then let it cool off if it starts getting hot.