Quite awesome, and nice video. I miss SLC...for several years I used to have to travel there for work about 1week out of every 6. At night I would either drive up into the mountains, or head west to the flats or Wendover. Your lucky that you have access to a nice facility with a good track.
The only input I can offer regarding your track day is that it's been proven that lap times are greatly improved when using tires...