How is the ride with those Black Max shocks? I was thinking about going with those due to reports of their softer ride but, like most shocks, they don't offer properly valved sets when mounted in a dual application.
Alternatively I am considering Bilsteins that do have shocks with lighter valving specifically for dual mount setups. Using examples and information from ORD's website, for a 6" lift like my truck, the rear shocks would be 12" travel for rear with 255/70 valving. The front shocks would be 10" travel outer and 12" inner both with 170/60 valving. Bilstein recommends the 170/60 valving for dual shock applications.
The Bilsteins are quite a bit more money and you have to make sure you get all the proper bushings to match the factory quad shock mounts, but I wonder if they still might be quite rough?