Leaning over shocks
I have always thought of it , as an effect on the progressive nature of the shock.
If you lean over the top of your shock on a touring car your will gain mechanical grip in the long sweeping corners due to making the shock initially softer in the first part of it's stroke before the suspension stifftens up. The cars weight is allowed to roll and put pressure on the outside tyres more.
However leaning over your shock too far would make the the shocks sluggish to react into chicanes where you want the car to roll from side to side quickly.
As always it's a trade off.
Best thing to do on your car is to try both extremes on a track that has both fast & slow bends and also a chicane.
Get to know how the car feels at both extremes, don't forget to re-set your ride height each time.