Apologies for my sarcasm.

A PSE tells you that you have a big dick while you're having sex.
A GFE mentions your big dick afterwards, while you're chatting.

I like your idea of what PSE should be. However it seldom is all that. When dealing with a real pornstar, you are mostly paying for the name and image. Most pornstars that escort do little more than a good GFE local girl does and some do a lot less. There are some really good porn ladies that make the entire experience like walking into a video, that is what I call a real PSE.

Surprisingly there are few stars that give that, all-out stepping into a video experience. Most are surprisingly average and a few are complete flakes. Since most of the guys are there for the fantasy they don't mind the average service. They are just there for the experience, which can be VERY expensive.

I am the moderator on the Pon Stars Board here on TER. Check it out. Some of the stars post and are fun people.

I would say that your description is pretty much on the right track.  I've never taken PSE to mean a session with an actual porn star.  To me, PSE implies a kind of rowdy demeanor more than any specific activities.  It may include many of the things on your list, but whatever the specifics, it's more the tone that makes for PSE.

If you've ever been squirming up against a wall while a kneeling provider squeezes your balls in one hand and strokes you with the other, all the while begging you to cum on her tits, and then once you do, assaults the head with the previously discussed PCH--you've probably just had a PSE, whether she's a porn star or not.  (Okay, I'm hot now.)

If you're collecting a list of "technical" criteria like the ones you listed, I might throw in toys/strap-ons, unusually athletic positions, and dirty talking.

I guess I'm still a little confused, well not really confused I just realize that the definition is varied my many.  I suppose that would bring about the mixed reviews about PSE's.  On would think it would be self explanitory, a PSE equals all the things you see in a porn with PS however thats not the case.  For some a PSE is just that, for others its just the ability to be with a PS and for a few its having the experience of being in porn with any provider who is willing to do those things.  To wrap it up, I was confused before because I had no straight answer but now Im not confused because I realize that there isn't a straight answer lol