As jeff explained it to me... When someone has extra features on the VW, such as a VNT17, or an 11mm Pump for example, Jeff will change the program for their setup accordingly. Or their VW might just work better with a different setup...
In my case...
When I went to see Jeff, he had just got back from Texas where his laptop crashed. So he pulled the hard drive, and pulled an RC program from it, put it in another laptop, and loaded it onto my ECU. When we were test driving, he said it seemed more than an RC2/3, so he looked at the program, and realized it was a 2+ and 3+. He didn't remember why this setup in particular was a plus+. I guess I would have to find out whose car it is on, and ask him. I think I'll ask in that texas thread...
I was thinking of having Jeff take me down to a regular 2/3. I'm still undecided on this.
In Vagcom, under the Engine Contro Module, you can see listed, under Rocketchip, 'S02' for stage 2. SP02 is listed for a plus setup.