I have always rotated my tires at 12 to 15k to keep wear even. That's how I can get a good 65 to 75k out of the BFGs. I rotate as: 1) X, 2) F-R same side, 3) X, 4) F-R same side. Always have at every other oil change.
Hey now... That's a great idea. They could park it in the travelling dyno and have a special shelf for the travelling oil can! Ok, just let me know when it'll be near me!...
When I have got new tires I get them and then take it to the local Bear alignment and they spin the tires on the truck to balance and then align. They last a lot longer in my book that way