Just spoke with Eric today over at Afco and got the 411 on the part numbers, price and valving along with ext and compression figures.
Should have them in a week or so. Aluminum at that and they weigh 4-1/2 Lbs.
He has suggested certain settings as a start point and go from there depending on track conditions and so forth.
Painting them black to make 'em disappear within the chassis.