Same wheels between the two tires? I'd be curious if one of the wheels itself isn't slightly bent. We typically don't have any issues with the Falken Wildpeaks.
What kind of trails are you running? Are you going to be adding a tent/ Overland setup to it as well?
Reason being, once you start adding more and more weight, the lower price point lifts are going to require some help to keep the ride smooth (you can add a fair amount without worry, just keep...