Well if referees were quicker with the 2 mins and riders had to be at the gate and ready to start in that time, start marshal's were 'empowered' to be more strict with riders ignoring them when called in to start and riders anticipating that start did not lead to a re-start with re-fuelling, etc.. then curfews would become academic as a meeting would be run in the vast majority of cases well within the two hours...
Also hi Bob haven't seen you for years!