Started practicing today with the Stan Black Pearl DS and found this video by bowman123ish on youtube.com along with Sonny's many comments regarding this and I think I am getting off to a good start. I made a sting out of d-loop material to practice with, set the Morex to a medium kind of setting and also installed the training pin to practice with. This video although many will criticize it for not suggesting correct form, helps the beginner to see how a bt works and how to begin to set it up and practice with it.
Addendum: 4:30 AM on a Saturday morning practicing back tension release, LOL, I think I have drank the Kool-Aid!
STAN BLACK PEARL DS
How to Use a back Tension Release