I know that stiff springs are more responsive than softer but why? It seems natural that this would be the case but what is happening during turn in? I read on another forum that the softer springs would store more energy than the stiff because they compress further. However two springs of different stiffness can still store the same energy according to U=.5kx^2. Others have said that the car won't turn until the body settles and stops rolling because once the body has stopped rolling [insert various explanation here]. Also it seems odd that when the tires are turned into the corner the car would be going in that direction regardless of body roll and spring stiffness even when you account for the slip angle of the tires. So can someone explain to me in terms of conservation of energy or various equations etc. just what is happening during turn in that makes a stiffer setup respond to steering inputs quicker than a softer setup?