This was a shortish practice day; we missed the first session, and the last one was cancelled as a result of several lengthy oil clean-ups during the day. It was quite productive though, and I was able to increase my lap times by another second and a bit, so I am now in the 1 min 26 sec range.
Matt Lovell kindly agreed to drive our Commodore in the final session so he could give us some technical feedback. His advice will be very helpful. Thanks also to Bruce Heinrich for some more tips.
P.S. Happy birthday to my niece Emma, who turned 1 the next day.