I felt good about it until other people started posting their solutions. Nothing too nasty in it, my fault for not studying enough (lived in New Zealand with a very different maths syllabus until year 11, and I did 2U during prelim, so had to cram year 9+10 maths and prelim course last night ON MY BIRTHDAY). Too busy with biology to bother with maths earlier this week.
I found all of the multiple choice to be quite easy, but some of the larger questions towards the end of the paper started messing with my sleep-addled brain. Bless the person going through my answer for trig, volume, financial expectations and that snow question.
On the other hand, it sounds like the 2U kids had a lot of fun....