Bump stops and anti tramp bars may serve you well. But they are symptom treaters. I have the 4 leaf 4 seater springs with adjustable AVOs. Do this first. The other measures may help against twisting and lateral forces. But the spring itself remains too weak.
Sound advice indeed.
I would be surprised if the torque delivery of a standard plus 4 really merits anti tramp unless you are into really flooring it with racing starts.
Im not driving Miss Daisy
I give it some beans when setting off and it tramps. I imagine its a bigger problem on bigger engine cars but still, needs sorting.
EDIT- on bumpy-ish surface. On smooth even surface it doesnt do it.
