Quote Originally Posted by Xayoc View Post
It is highly likely that it will work similar to setting an Aetheryte to 'favorite' where you cut in half the cost of going there. If you 'favorite' the city where your house is currently it halves the cost of porting to your house as well. I suspect that something similar will happen where if you set the 'free' teleport to the major city where your house is, it will be free to teleport there.
Your FC House Mini-Aetheryte always counts as a Favorited Destination no matter where you set your other three.