I recently put on 33x12.5. I trimmed the fender just enough to make them clear when I turn from lock to lock. I still need more clearance so I was thinking of running add-a-leafs. I know procomp, rough country, tuff country, and Skyjacker all make them, but which is the best. Is anyone running these or know someone who is, I'm looking for the one that will give me the most lift, and hopefully a good ride, well as good as it get in a K5. Thanks for any info you might have.