I noticed a couple of things after the Chatsworth case and another case here in California:
1. They are more interested in the actions of the actual property owners than what a Land Surveyor did or didn't do at some time in the past.
2. They are more interested in recent history than ancient history.
I think this is what knocked several people including CLSA for a loop here in California. Digging up old problems just didn't fly; where is the boundary now is what they want to know not where it may have been or may have been intended to be at some time in the distant past.