So you're telling me that Ross never looked at the data from the G.P.2 tests beforehand? He might have lost a tenth with old age, but that isn't enough for his fanboys.
That data would not have told him a single thing unless Rosberg drove the same car on the same day because there was no comparision to judge Michaels speed, plus even if there was it would have been reasonable to assume he just rusty after 3 years away. Ross took sa chance and thought Michael would be as good as before but he was wrong.
They make wild claims that because he's getting destroyed in qualifying that he's lost between 0.5-1 second in pace with absolutely no evidence to prove it
The fact that Rosberg, a zero time race winner, and someone who has never looked amazing in his whole career is able to thrash a 7 time world champion 91 race winner is all the evidence in the world, for a rational person.