The pull you feel is a combination of your huge meats in the back and the rutted freeways in this state- any car with wide tires will be constantly pulled into ruts. I would need more description about the "play" in your steering to make a recommendation on that, however. The aformentioned front tire change may help, though I would inspect all the front suspension pieces before going that far. The CC plates are only needed if your camber is noticeably negative. Mine was, as I lowered my car three inches in the front. If you can't notice negative camber, however excessive it may be, you can also check the tire wear; if it is uneven with the majority of the wear on the inside of the tread on each side, you need CC plates. I have the UPR plates- they are cheap, functional, well-made and nice looking. Good luck!