I've got a revision in progress but not a lot of new details. Was hoping for a new rev to drop which would add more content. At this point I think there are few if any significant software differences between PRO and PREM/LE with regards to how you play the game (i.e. things only available in PREM/LE).
Things I'm also keeping track of as areas of interest that need clarification with regards to how PREM/LE differ from PRO are:
* Sometimes you have to collect Slimer or Scoleri's in the Ecto-Goggles instead of their standard positions.
* Physical Ball Lock - changes strategy of playing modes as the ball will be served up in the plunger lane vs. shot out of the right scoop (unless no more room for locked balls)
* Unsure if/how Right Ramp return to Left Flipper affects PKE Frenzy
* Unsure if/how Right Ramp not having the 3 switches (like in the pro) affects gameplay
* Unsure if/how Slimer moving left/right is modified during modes where he moves up and down (so you really can't hit him). Don't know if he just moves around more or if he hides above pop bumpers and then comes back down.
As always... help and links to gameplay videos are appreciated.