FUCK. I am soo worried about the UMAT
everyone says it was really easy, and they aced section 3. I had to guess 3-4 in section 3, and not sure of a couple of others!
and also section 1, people said was really straight forward, I think I did alright, but nowhere close to acing!
and section 2, I don't think anyone can be sure of that.
its so disconcerting to hear peoplle saying they dominated it 
don't worry too much.
cause, section 1 is like, people think they do well but dont realise they make mistakes or misinterpret things.. so you should be fine
as for the umat.. we should be glad its there, otherwise we'd all need like an ATAR of 99.8+ (that's seriously not happening with me LOL)
And in regards to the hard/trial questions, if memory serves me correct, the instructions do indeed say "don't spend too long on a single question"
i think its a good test, except section 2