I am not a chassis guy, but I am an engineer and I do understand what Ed was talking about. There are differences between things that will work for the space shuttle vs most of our race cars. The thing that has to be remembered Brian, is that ProStock is not for the "normal" person. I love ProStock and we have a lot of the ProStock technology in our cars, but to a degree it has been "down sized" for normal racers on a budget. Pro Stock is trying to find every .001 of a second that they can, so if they can change a shock to get rid of the least amount of variable, they will. They have the carbon fiber driveshafts, gun drilled axles, and the list goes on. These are items that you would not necessarily need for your Camaro, but would be nicer for your Corvette. The same thing goes for the top of the line shocks.
I have the single adjustable shocks on rear of my car with 12 settings, but set at setting #4. With my limited use with them, I have found that #3 is too soft (walks around on the top end) and #5 is too stiff (spins the tires harder at the start) The other settings were useless on my car, so I would in time step up to the double adjustable shocks to have a little more range. They wouldn't be as good as the new Pro-stock style, but they would work better on my car. It really depends on what you are expecting out of them, how big your budget is, and how fast your car is. The double adjustable shocks that we can easily purchase now were used on the Pro-stock cars of the past until they found a little better way to adjust the car.
From what I remember Warren Johnson talking about the pro-stock shocks several years ago, was so that they had the external resevoirs and CO2 cannisters was so that they could change the valving as the car went down the track and be a little more precise. If all of the valving is internal, it is more difficult to change for different sections of the track. The shocks hold the car up a little more at the beginning for better traction and then start letting it settle more as it goes down the track for better aerodynamics.
Bill M