A long time ago, a fw bods rocked up to UNSW to take part in a study on fatigue in motorcycle riders. The study apparently didn't give really obvious results, and as far as I know hasn't been published as a conference paper or in any other accessible form. The people doing it want to do more though, but have to find funding. So far, all there is is at [URL]http://www.roadsafety.mccofnsw.org.au/a/50.html[/URL] Zebee