Now i have a question about that....i thought it was possible to be regular, in that their ritual and requirements for membership and landmarks ect are regular but they could never be recognized and would forever be clandestine?
The best known example would be the PHA branch of our American family. They all descend from African 459 of the Premier GL of England. They were declared regular and that gives hope to clandestine jurisdictions, right? It doesn't work that way. There's more to it than that. 1) They had no other choice because they were not accepted by the other branch of our American family in that era. And 2) they remained loyal to the Premier GL. That second point is crucial.
During the merger of the Antients and Moderns in 1812/13 all of the American lodges were dropped from the roll but up until that point African 459 had continued sufficient correspondence. African 459 attempted to continue their correspondence. They had demonstrated a lineage that was continuous even though they had had to hive other lodges to form their own jurisdiction(s).
The situation of other splinter clandestine jurisdictions does not have that lineage.
There are ways to become regular. Healing agreements could be worked out. The model might be the original merger of the Antients and Moderns. But can you imagine a GM of a clandestine jurisdiction agreeing to take his degrees over again?