Yes, I have 8 As from H2 Mathematics Paper to date already. Many students still are bewildered by why I do that and wonder what it is like for me. It is fun.
Some closer students have done mock/ practice papers with me before. This is an interesting and good exercise, which I’m still studying on. Simply put, I do the same paper with my students and to be fair, it can be chosen by them. So it is unseen for all of us. Doing with them, gives them A LOT of stress as they can observe my thought process and all. Nevertheless, many do feedback that it helps them to analyse questions better.