The instructors are good. All of them, even the cranky ones. Except that maybe on a bad day they might fail you if you do badly.. Of course some of the instructors are worst, i would say 2 only.
First time i took prac 1 kena 4 times. Then the instructor give guailan look also piss me off, make things worst. Then another instructor was totally fierce and sort of shouted at me, and frowned like a biatch cus i go park back under building and people followed me behind. So kena screwed.
But all in all, i find strict methods prove to be safer. Cus once you ride outside you would tend to be more careful, and also when your tp you know every course and every area what to do due to extensive scrutinizing. Gl to those takin tp test, i just passed mine on 24sept. Just treat it like normal cr and rr can already