Thanks. After posting this message I found and downloaded the ACU SRs, however, what I still don't know is how the timing works as the crews seem far more relaxed than, say, F1 car crews. Does the clock stop while riders are in the pits, is there a minimum/maximum stop time? Also is a pit stop mandatory for all other than sidecars and if so, what happens in a situation like the Prod 600s where the race is shortened to 2 laps and some riders have pitted while others haven't?