Coefficient wrote: You seem to suggest that taking a few photos of the Red Bull and carving something up in the shed that looks similar would do the trick, that is nonesense!!
I think it is no nonsense, but it is more or less what happened.
Of course mclaren have done some evaluation before sticking to redbull solution.
I am curious to see if mclaren will bring in the octopus exhaust later on in the season after fixing some issues with regulations and reliability; they seemed to expect a big gain in performance from that system