Proflex is nealy the best one, but i need to be very lucky to get a used set to a good price.
A friend of me drive a Proflex kit in his group A Escort, and he said he never can use the full performance of this suspension.
But i think with the Bilstein Dampers i have a good set, and the springs from a dealer who buil racecars and is specialiced for cosworth have to be good, he shud have enough expierience.