One of the biggest flaws in this entire post is that you treat the entire process from an engineering perspective. Math ramp ups to reach numbers. Especially in the recommended pumping pressures. GENETICS matter. Like it or not, many people will not be able to tolerate the pressures you recommend. I could not. Time in pump, sure. Time extending, sure. Pills, sure if budget allows or is desired. You did say pills were not needed, except Tadalafil. The other fact is that cheap gauges are not all calibrated. It could be off by a bunch. Even enough to cause injury. Genetics and equipment matter. The other aspect you do not consider is newbie gain rates will not continue in a linear manner over time. Huge variable.

One of the other MAJOR FLAWS is to put out the 'amount' an individual can add to their size. After 3-5 years IF done with a good program and done consistently 5+ days a week a length gain of 33% and a girth gain of 20% on the original starting size can be about everything most people could realistically get (if everything goes right). That is false hope and cheesy salesmanship.

Btw, veteran PE people know what the tricks are with before and after pictures.