Tero has an interesting map and summary of his recent encounter with "Orient Show", a variation of Micro O. Go to Tero's website, click on Archives, and select the 26/11/2006 item:
http://www.tero.fr/
1:1000 map; 41 controls; no control codes - 30 sec penalty per mistake; under 5 minutes?; head-to-head,with butterfly loops.
He enjoyed (and did well!) with this version.