Hi K-Chow.
Yep, that’s explained here.
https://cgcookie.com/lessons/03-bones-bones-bones about the 3:06 min chapter mark
The head/tails are stuck in the same spot and cannot be disconnected from each other,
When you are using bendy bones, this connected option will be used for the handles (the automatic setting)
It’s ok if this doesn’t all stick the first time. It took me years to realise how some things worked.