The Basis: One of Many Precedents

Uncovered in the dead

of night.   Lesson learned:  if you plow through the archives, going back decades, locate appeals that have gone through the court process, some taking many years to do so, collect a sheaf of cases that support your premise and substantiate your claim, which has moved to appeal status, then maybe, just maybe, you can find some professional, therefore more highly regarded in the VA than you the individual, to agree to help you with your appeal. Because it's unlikely that any paid professional is going to burn the midnight oil uncovering evidence from long ago, especially when a remand is most often the VA response, which can take years, even if success is the outcome.  You have to do your own slog work.