You may be right.
http://community.boredofstudies.org/showthread.php?t=31870&highlight=scaling
http://community.boredofstudies.org/showthread.php?threadid=15736
There is no exam thoghuts forum for physics yet, although there will be on Monday/Tuesday.
80 would scale up to high 80's, made low 90's, depends how hard the paper is.
Why would you combine Perisher into a global tourism essay? A global economic activity (global tourism) and an enterprise operating at the local scale (Perisher Blue) are two different topics.
All papers are identical. At the start of each exam, the head supervisor takes you through the paper to make sure all pages are present as they should be.