There is another way, make sure your dummy xbox with no DLC is the host, this way your other main xbox will be fine.
Achievements completion : 99,53%
Gamerscore completion : 99,55%
Retail games completed : 84/87
I'm a completionist!!!
Currently working on Halo MCC, Assassin's Creed 4 Black Flag on X1.
If you send a friend request or game invite, please send a message telling what or why, otherwise I will just ignore it