Well. I changed the two settings of ground crosswind first. The result was quite good.
Then I added the 2 new lines : ground_high_speed_steeringwheel_static_friction_scalar = 10 ; 1.0
ground_high_speed_otherwheel_static_friction_scalar = 10 ; 1.0
After the steeering weel changes the C172 became less manageable. I don’t know which setting is more realistic .I will try different values to see what happens. Eventually I’ll remove the last 2 lines untill Asobo will decide what to do in this regard.
Thank you very much for your tips.