Hi
I am going on the 30th. Done a few of the events O'Neill days, good events. Always get an interesting line up of cars. Luke runs an ISF himself.
More ISFs the better.
Check your insurance, it is a grey area. Some policies cover advance driver training others dont. Instructors are availble and the beginners group gets a lap of the track with instructors first up then they are optional. It is not a Lexus sanctioned event.
Of all the event I have been to the Events O'Neill are the best run, no overtaking by consent properly policed and due to the expensive machinery everyone plays nicely.
As you say Rob , got to try it once.. be warned you are likely to get hooked.... then start playing with the car to make it faster....