Yep... the Vapefiend vid. Those two lovely folks were the ones who turned me onto the TM to begin with, so I can't fault them too much.Yeah, that Vapefiend video tutorial. Totally counterproductive. I've been using the same cooling unit (incl. screen and o rings) for over a year now, no issues.
On the other side of the coin though, Troy from Troy&Jerry was the one who first gave me the idea of leaving the rubber bands on. I must admit, I just kept snapping them with the pinch method. I haven't taken one off in two months now, and all seems fine. I imagine eventually one will bust, but I was going through them a lot quicker before!