Disease-resistant Chamaecyparis lawsoniana is the only thing that will give you a chance at long-term success.

Cedrus still absolutely NOT work.

Thuja is compatible with lawsoniana and is a good alternative to acquiring disease-resistant Chamaecyparis lawsoniana root stock. I have a Chamaecyparis lawsoniana 'Van Pelt's Blue' grafted on Thuja by Andy Duvall of Duvall Nursery Inc., Michigan. =)

Platycladus or Thuja work only for a short time. Within 5 years you will likely have a really ugly plant on your hands (delayed incompatibly).

Ah, Thanks. That's good to know. Before I got my 'Van Pelt's Blue' I saw one of Andy's grafts in a private garden that was around 4 years old that looked great and made me want one. Perhaps it's downhill from here. I'll cross my fingers and hope for the best.

Do none of the other Chamaecyparis work as rootstock?

Where does everyone get their rootstock from? The only place I have found so far is western evergreen, which is where I got the deodar cedar and and taxodium stock.