It's scales very well, relative to other subjects and even better than physics (but yes, it's capped)Actually, it scales quite low. In 2008, the UAC scaled a mean mark of 38.1 down to 33.9, and even the highest mark at 49 was scaled down to 48.4. In 2007, the UAC scaled a mean mark of 37.9 down to 34, and a top mark of 50 was scaled to 49.5. It's not a good scaling subject.
High scaling is Extension English, and especially Extension Maths.
I have a friend doing History Ext. and it's quite theoretical from what I gather. They sit in the classroom and read papers.