blah, blah, blah, blah, blah, blah, blah, blah, blah, blah, blah, blah.
I've personally seen DSE's Quadra-Link and DSE leaf springs run within a tenth of a second of each other. Same track, same weather, same driver. I used actual eyeballs to witness this proceeding. My spreadheet was at the dry cleaners. In addition, my olfactory senses provided me with the smell of engine fumes and flatulents emanating from their car owners as both cars were driven to 8/10'ths of their full potential--which is to say very aggressive driving.
It is unlikely that either car will ever experience ten tenths because of the risks associated with that whole 11/10ths thingie. So given that this is a hot rod site, sweating minute performance discrepancies is laughable at best.
If I were forced to draw any conclusion, it would be that Quadra-Links ride real nice and are adjustable while the leaf springs are cheap and easy.
Leaf Springs:
Quadra-Link:
