The Ekka day was a one off due to tthe track becoming available.
This is being run as a normal SDT track day, which is two sessions, and believe me after either the morning or afternoon session you have had more than enough. In the morning sessions, the car numbers drop off slightly as people get tired and in the afternoon sessions I have had days wrap up early as drivers cry enough
The half day is plenty of track time trust me, as I am sure others who have done the days will attest to.
And the most important bit after having fun, take advantage of the tuition available, this is the easiest way to take seconds off your lap times. The guys there on the day are very experienced racers and know their stuff. When I get to work on these days and I get the chance to drive, or I get to play if someone has dropped out at the last minute, if the customers haven't grabbed Ross, Chris, Joel or any of the other instructors I will get them to come for a run with me to improve and pick up a few tips. Hell even the best athletes in the world have coaches to keep improving their performance.