Originally Posted by slotracer577

Don't confuse body roll or movement with weight transfer. They are often exactly opposite. Usually softer has more body movement and less transfer of weight. A stiff chassis has effectively infinite transfer of weight and potentially no body movement.
Trophy trucks are a great example. They have huge body movement on soft springs to reduce weight transfer since they race on low traction surfaces. Put them on a high traction surface and they almost roll over.
Look at how anti roll bars work, they stiffen up the vehicle in roll, increasing weight transfer and reducing roll. Usually they result in a net reduction of traction due to the increased weight transfer. That is ok since they are usually used on high traction surfaces to control body movement.