To make my tires last longer I rotate and flip the tire on the wheel on the following schedule:
After one hour I put the tires that gets the most abuse in the position where they will get the least abuse.
After another hour I have the tires dismounted and fliped on the wheels (switch the insides to the outsides for those unfamillar).
After one more hour I put the tires that gets the most abuse in the position where they will get the least abuse once again.
Final step: run them till they cord or cycle out.
Sounds like a good plan, unfortunately I don't have free access to tire mount/dismount and balance equipment so your plan would probably cost me more (vs letting cord out) in the long run - tire dismount/mount and balance in my area is anywhere from $23-$32 per tire. But definitely a good idea if you have free access or your own equipment as that will make them last longer.
Since the rear tires are moving so much on the rim, I'll probably skip rear tire balance completely since it's pointless. But I'll continue to balance fronts as they don't move.