You were the one to introduce the word "mentor" in this debates. You extensively and interestingly discussed the type of training you had before. IMHO in this hobby "learning by being there" with a mentor is training. And yes, trying David suggestions and experimenting the CCs is training - it has shown me different ways of listening to reproduced music.
'Training' is not the right word, not the right concept. Training has a predetermined outcome. Learning with or without a mentor (counselor) is a process of discovery.