Norm Peterson
corner barstool sitter
My guess would be that they don't offer quite enough damping for cases where best tire grip is demanded and ride quality does not matter. This is a 'percent critical damping' thing, and the short story is that a stiffer spring needs more damping just to stay at the same %critical damping than a softer spring does. Best grip comes at two or three times the %critical damping for best ride, so there are two separate factors each calling for greater damping.
This is only a typical critical damping graph, but it's good enough for illustration.
Norm
This is only a typical critical damping graph, but it's good enough for illustration.
Norm
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