I do not have a video tutorial. The process is extremely simple.
Purchase some 1.5” PVC, and then cut to length. The piece I used was around 2” I believe. That takes care of the chamber.
Next you will want to modify the test plug, by simply drilling two holes on the wings of the wing nut, and then attach S hooks. Crimp down the ends, so they can’t come out. You can use a zinc ring or D ring to hook the other end of the S hooks to. Now you will be able to attach the vac cap to your weight system with a spring clip (carabiner).
I have found the vacuum to be a perfect amount of pressure with this vac cap. Much like with the twist cups.
The only secret is that it takes determination, motivation, consistency, and dedication.
Know your body's minimum and maximum limits. Every man is different. Only YOU can find what is effective for YOU.