On a somewhat related note...trailer tire rotation...anyone do it?

I bought 3 new trailer tires at the same time...2 of them have been on the trailer and one inside as the spare. I'm wondering if it would be a good idea to put the spare into use and equalize road wear and UV damage between the 3. Tire experts, want say you?

All 3 are purpose-built tires for trailer towing. Purchased at a good price from Discount Tire here in the US...for the thread originator, you might see if they have/can get tires in your size at one of their retailers along the way to the Northeast...Midland, Abilene or Ft. Worth?

Rob