Jason, if you check out my Castle Combe race report from last season you will find some info on my experience of the trackdays run by the circuit there.
Probably one of the most enjoyable days of the year from a weather and social aspect.
I'm looking at July 18th for a track day at combe. Never done a track day there, just jumped straight into the racing - which is of course why I didn't win! Will have to have a word with mr Luigi about some zorst killers cos mine won't pass the way they do the test... at Oulton the dd bike was reading 105db @ 5000rpm so won't stand a chance @ ¾ revs.
Nick i seem to remember that there idea of 3/4 revs was taken from the end of the rev counter numbers backwards. Mine shows to 11000 so they reved it to 8500/9000. Nice people hey . protesting was futile