I have been using a variation of his routine.
First I do 200 wet jelqs. Then I do 3-4 sets of 10-15 minutes each. I train about 6 days a week but unfortunately I don’t have a heat lamp.
For added pressure, I use four clamps, two at the base and the other two alternating each set between mid-shaft and upper-mid shaft. Discoloration is starting to get pretty obvious (my SO is asking questions). Expansion while training is usually only 1/4” - 1/3” around the mid, but I get past 6 at the base (fluid).
I clamp so hard that its not unusual for me to get a donut around the frenum. I haven’t noticed much gain in girth, although I am growing longer - figure that.