Jim,
That's great to hear that the Messerschmitts will be so well represented. Last year, there were about 8-10 micros in total, primarily Isettas. Others there were (from memory) 1 Messerschmitt, 1 Berkely Sports, 1 Austin Bantam, 1 Crosley. The numbers of micros have been slowly increasing over time, especially since they gave them their own class. Now that the schmitts have their own, hopefully that will really start to increase the numbers. If the weather is as good as last year, you're in for a fun weekend!
Steve.