That won't heal your vibration, vibration is always an unbalance on a rotating mass that needs to be cured with balancing - not with dampening.
And i tell it again, vibrations are a hell to figure out - it even come from your rear driveshaft and you feel it from Frontend.
Indeed it is very easy to beat the Bilsteins, just go one step upward, by a custom valved King or Fox and be happy, no need for Double shocks or something, just a setup that is made right for the truck it belongs to.
Generic will never meet a particular vehicle.
I finally got the new shocks and installed them over the weekend, the left shock still had some rebound to it but was weak, and the right shock was dead with no rebound at all I hope to road test today or tomorrow and I will report back with the results.