QUOTE (The Big Guns @ Jun 29 2010, 18:12)

I'm still wary of the update. It could all go horribly wrong, too. It took Mercedes backwards this weekend (whether it was due to the cars being more difficult to set up or not maximizing the full potential), it's risky business. I hope to be pleasantly surprised, though.
Mercedes went backwards for two reasons, tyres and the fact that they had to alter bodywork due to the heating problems of the new system.
As for Mclaren, yes it could go horribly wrong, but if us armchair expects are correct, then they did use winter testing for a number of validation tests. We all saw the birdcages back in action, persumably to validate and correlate wind tunnel and cfd data.
Other than a front wing which didnt perfom as expected, every update so far has. I fully expect the diffuser to be no different