Since it seems that this thread is still alive and well, I can shed a little light onto a couple of things. I got away from the classic bluelighter stuff and got into bodybuilding, where stripping/cam/porn/even turning tricks is very common (straight and G4P both). How deep you get basically is dictated by how big you want to be (literally and metaphorically) and how poor you are. Between food, supplements, supplies, gear, and all the time it takes, there is a huge bill with not a lot of time left to earn money to pay it. Money is only made by those who are already successful, but it takes a long time to get there.
I know some guys who have done straight porn and I have done cams and similar things, so I sought advice from them at one point. Basically, everyone is right. As long as the studio allows it, they will do whatever they need to do to get into the headspace that allows them to either enjoy, or appear to enjoy what they're doing. As bluelighters, we should all know that drugs affect different people in different ways. Some people like to go up, some people like to go down, some people find seemingly odd things that work for them. I know a girl who would do mega doses of etizolam, like 30-50mg multiple times a night so that she could do whatever and feel okay with it. I found that for headspace and utility combined, a-PVP couldn't be beat for me. Benzos help when you get too many uppers so that you don't get meth-dick as easily.
The PENIS SHOT is NOT A MYTH and was used extensively at a studio he worked for. It wasn't condoned or done in the open, but everyone was doing it in the bathroom or anywhere private. It is call Nolotil. If you google it, there is a bodybuilding article where another guy mentions using it back when he did porn as well. He basically says that the amateur beignners use viagra and cialis in large amounts and that is reflected in obvious side effects, but that the guys higher up in the game use the Nolotil.
I don't come here a lot anymore, but someone in real life actually mentioned this thread and asked me what I knew since they knew my history with strippers, amateurs, and cam shows, so I had to drop by and throw in my two cents. PLUR!