TopiToo,
I wouldn't worry too much about the groups. If it's open pit lane you can stay off the track if there are people out there you'd rather not be riding with. I'm Inters now but, as it's a new track, would be taking it steady, at least to start with. I think the standard will be fast but safe (unless these guys have their race heads on, in which case I'll be getting off the track and keeping my nerves in tact.
TP, will be a an opportunity for a bit of CSS style instruction?