more adjustments as you can adjust the length of the dampers and also have damping adjustments so you can set how the damper rebounds in other words you can adjust how stiff it rides. It rides firmer and still has a smooth ride but than you can tune it for track use and can make the ride super stiff.. AirREX air suspension is very well known and has a proven track record as far as it goes with a true performance air strut as they have been racing for years and winning races on air. here is a feature on there race car. http://www.airsociety.net/2011/12/mi...ng-air-airrex/ the quality of ride also depends on how much pressure is in the bags.. the more air the more stiff.. normally we all like to drive the cars as what we call it the sweet spot.. its in between full up and full down at a certain pressure. the next question is can you ride the car at its lowest setting.. the answer is no. manufactures don't recommend driving the cars with zero pressure. the reasons are you can damage the bags and struts. one thing is you can ride it low depended how your wheel set up is .. but with guys that have wheels poking out.. unless you can stiffen up the ride... the tires will rub the fenders. if the wheels are tuck.. you can ride as low as long as your bags have pressure in them to answer you third question about