So why were people saying merc had missed out on a load testing?
Looks to me like they have used it better than anybody. They have put a load of miles on the new car, yet perfectly benchmarked the new tyres on a car they know.
All that while hiding any secrets they had for a few weeks extra.
(though frankly, I don't believe in any secrets)
The new simulator provided them with a chance of added development of the new design, while not missing out on the testing at the same time. They have hopped a development phase. Ingenious. If the have tucked in 60-70 laps today, -knock on wood- the reliability is as expected so far. They have been mocked at for delaying the launch, and now they seem to be proving themselves.