The timings are to cock anyway.
Last time out the faster riders were making ~40-45 minutes I was about 1 hour and those that had breakdowns were an hour and a half plus.
We just don't know how long this lap will take, so whilst it doesn't look a difficult route on the map and sub 1 hour is pretty certain, whatever we guess will be just that and will almost certainly fall apart on the day.
Its looking more likely that 3 laps each is the way to fill the race.
Id be quite happy to run a double lap in the evening if we are running ahead of schedule. Rather not do so in the afternoon heat (as I'd probably die) but the cool of the evening / early morning I can take a third lap.