There is no other evidence supporting this, nor is there evidence of this.
You don't have to try to be arrogant, it comes natural. Twist has substantially more knowledge and respect than you and he still comes off humble and simply asking for you to back up your statements with facts.
If you are going to say you and your friends do it and it works, but it didn't work otherwise, then you would need to list the specifics of the protein percentages or grams that you tried before, as in "me and my 3 friends, tried diets of .5 grams of protein per pound of bodyweight for 8 weeks while performing workout x and not taking massive amounts of steroids and added y lbs of lean muscle, then we went to .75 grams, then 1.0, then 1.25, then 1.5, etc... etc..." also you would need to list age/ht/wt for each and other factors, including but not limited to, steroid use.
I would wager your "proof is in the puddin" is more like, I've always done it this way while taking steroids and it worked for me. Your statement about "having the goods" is further evidence of your absolute lack if intelligent reasoning. I have seen so many better built guys in the gym with terrible diet and exercise habits that wouldn't work for anyone but the most genetically and metabolically gifted.