AZReason,
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.
Rob.