We are defining canon differently.
Per Wiki.
Canon (fiction), a body of works considered "genuine" or "official" within a fictional universe
Any thing found in the 4 series run is considered canon.
If you use Tempus the story has an LnC canon element.
If you use Hyperion Avenue, yadda, yadda, yadda.
For the most part, it is assumed that you are using LnC canon here. It is when the characters are not acting LnCish, then we have problems.
If this is not the criteria, then I guess the Mods can step in and tell us what is the criteria.
James