Funny I have read this thread not long ago and now after getting a Boa and had it recommended must say it’s a good read. When I was at the pet store buying my Boa the gal that assisted me just went right in with a hook and picked her up. Needless to say the snake was not happy and striking at the worker who admitted the snake doesn’t much care for her. Kinda rings a bell with the recommendation in this write up to not use to pick up.
I figure I can train all three of my snakes this way, seems like a consistent way to communicate it’s time for handling.