Recently there was long thread about the BCA. I can now post possible answers to some of the questions, such as "Why is the BCA still raising membership prices when there is a significant amount still left in its coffers?"
Correct. That's why Twll du was created for easy access. Was used religiously for over 2 years until a certain few thought they would be clever and use it as a test case for the CROW. Guess what...It backfired on them and the entrance was concreted over.