I have been thinking about the regularity and still think that what Steve wanted to achieve is right.
A little background info for those who did not attend, Steve wanted to have everyone on the track at the same time so that it will give everyone a taste of 'real' door to door racing without the aggressive/competitive nature, therefore removing the possibility of damaging anyone's car. Also the overall timing difference is about 13 sec I remember.
I understand that it sounds daunting for those who have never raced but then this is the closest to competitive racing you will ever get. I believe the whole idea behind Steve ever organising different events over the two days is to take out the repetitiveness of other track days where all you do is go around and around, and he done a great job.
Fortunately I had my first regularity at Wakefield July last year and it was so much more fun than track days. It was a two day event first qualifying, it was really just trying to see what times people are comfortable with and the second day was racing. We had a rolling start in the rain so to avoid collisions and then its 6 hrs of fun (the total hrs for the team of 4 or 5 cars not the hrs any one individual have to run).
Just my 2c