PS Why such a difference between Russell and Hamilton? Don’t understand that.
Mercedes have a car that is currently problematic, to try and find ways round these problems, most notably the bouncing, they are trying a multitude of setups split across the two cars and today altered the setup on Hamilton's car with his agreement. It worked well enough in P3, but by the evening in quali when they made further changes in the same direction the rear became too loose and Hamilton was stranded lap time wise. Russell's car is running a different setup that works better in his hands. It's simply one driver has a set up that they are relatively comfortable with and the other doesn't.