Try and get a ride in a car with the springs dampers you are considering, I've had ahmed and avo/cd, no way would I say ahmed is any better, not for me, and that's the thing, what someone calls hard may be just right for another, hence there being no such thing as a perfect set up in everyones eyes, opinions vary a lot.
Either one is very competent/good to most people so try and get a ride as they are different.
tabetha