I've completed 2001-11 for the HSC MX1 papers, I've gotten fairly decent results hovering around ~80%. I'm aiming to re-do all of them and get at least 95%, although really I should be getting about 100% since I've already gone through the solutions when marking.
For MX2, I've gone through from 2000-11 but I'm not getting results that I'm hoping for. I'd say my average over the 12 papers is about ~50-60%. Q7 and 8 are killing me.
I'm aiming to go through the MX2 papers again, then start going through some trial papers.