Both the drop bracket and the extended bars have pros and cons. Each impact stability and roll differently.
When you lift the rear end, the panhard bar is no longer horizontal. This means that there will be more noticeable side-side movement of the axle when going over bumps. This can make the vehicle feel unstable. Also even when just parked it pulls the axle more to the right side of the vehicle because it is the hypotenuse of this triangle.
-With the Extended bar, the axle is returned to the center of the truck. The downside is that the bar is still at an angle and you will still notice the increased side-side movement when going over bumps. The upside is that this option also leaves the roll center height relative to CG unchanged (compared to a lifted truck with stock panhard).
-With the drop bracket, the bar is returned to horizontal and re-centers the axle. With the bar horizontal again, the side-side movement over bumps is similar to how the truck was stock which is good for stability. The downside of the drop bracket is that it increases the relative distance between the CG and roll center. This means that the truck will feel like it wants to roll over more than it would with the extended bar.
Seeing as how most users will expect the truck to take lots of bumps but not necessarily a corner, I feel that the drop bracket is the best option.
