I think when it involves drivers licence grades then you should follow BRCA regional rules that are set for the region.
And if you dont have scruitineering and referees, what is to stop people cheating or taking everyone out on the track. Bit extreme in most cases I know, but drivers shouldn't be able to gain from it and likewise drivers shouldn't be able to loose there license grading from other peoples gain.
Regionals are a bit more than an open or club meeting
