Based on whitmarsh and button, talking about the ride of the car and inconsistency. I feel this car has too much anti dive in the front suspension. Pull rod is not an issue it's the geometry itself.
I don't understand why they put the A arms so high up the side of the chassis, which basically goes where the push rod would be aerodynamically anyway.
There was some narrow minded view for going to this extreme, maybe to make some kind of gain based on simulation, but it didnt work out in real life on a bumpy track.
It's quite likely they were trying to make a car less sensitive to fuel load, when they did the suspension the way how they did it.
Because even in the rear, you will see that the geometry is quite different.
The car ended up being to rigid i think. It may very well ride almost as low with low fuel as it does high, but it's probably putting the forces into the control arms more than the dampers resulting in unchecked vibrations and disturbances affecting the aero.
I was watching the on board of the merc and the redbull, the suspension seems to have more movement.
Not to say my speculation is the problem with the car, but i'm just trying to work off what has been said about the car, and what is visually different between it, the other cars and the 2012 car.
Looking at this picture, the dang a arms are where the pushrods used to be, so the aero benefit in that regard is canceled.
I mentioned earlier an aero benefit based on the shape of the arms themselves and also brake fairings aero but that is a side story.
Any other reasons as to why the A arms are placed so high and which so much anti dive?