That Trail-Air takes care of Vertical Jounce just fine
Now I'm going to take my Thunderbolt 422AMP one more step farther and do the Vertical and Horizontal (chucking) at the same time!
It's called the "Ultra Fab Trail Air". It's the same air bag as above^ but with the horizontal motion plate added, yepper, just like a Mor/Ryde pin box. Notice the 3 grease zerks (on ea side) of the skid plate. This is the part that removes the Chucking and works just like the Mor/Ryde plate with the addition of still having the vertical bag (which Mor/Ryde does not).
Here's a link if interested (21K version) but you still have to purchase the model that matches your pin-boxes bolt pattern.