Highbury Fling seemed like a good trail to try out the bike with a full load. It was a rather windy and wet morning (very windy in fact), and as a result the track was rather dark.
Everything went well, the bike felt pretty good, although it did take a little while to get used to the altered balance.
I did change my setup as a result of the test run, moving my tent from the pack to the handlebar roll, which made the pack considerably lighter.