All good theories. One thing I'd mention is that CFD and Windtunnel don't have suspension systems so the porpoising is a problem they were basically blindsided by.Lefty8 wrote: ↑05 Apr 2022, 21:14what you are describing is a choked diffusor. The solution lies in a new underbody with new inlet and diffusor. This is going to take some time to correct and fabricate. There is also likely a correlation issue between their CFD and windtunnel which may not be calibrated correctly. We saw they started to have aero issues the start of 2020 already even in that year they referred to their car as a Diva. The W12 was a carry over and carried some of those issues from 2020 into 2021. Now the W13 is looking difficult. This is not a one-off problem. There's something else going on back at the factory that's translating into these challengessilver wrote: ↑05 Apr 2022, 19:07The problem, in Mercedes case is, even they are not clear what's causing it or what is making it worse! I doubt anyone outside of the team can even put a finger on the problem. To then say, they have most downforce of any team and that's why they have the problem, makes no sense. What we have seen being explained by various pundits is a simple conjecture of what they think is happening, which is that there is suction (from downforce) under the floor that pulls the car down and then there is stall, which releases the downforce and pushes the car back. Problem is, it's such a simple explanation of such a complex problem. I don't think anyone outside of the team knows where the problem exactly is. I would refrain from making conjectures of the problem and then use that as a reason to big up the team.