Seeing the posts for using Equal to balance the tires, someone posted using the Centramatic system ( www.centramatic.com ). I didn't believe in the lead weights for off-road tires, and Equal was sounding good until I heard about Centramatic. I live in good old hot dry Phoenix Arizona. Centramatics sounds better. Anyone have any problems with them? Do they work well for our use? It sounds like they were developed for tractor-trailer use. Has anyone damaged one? My current tire size is a 37 12.5 15 but usually 35's. The ride for anything much over 40mph is annoying, and the way Phoenix is growing, we're having to drive further and further to hit the trail.