I've started M1 this year and I'm enjoying it so far, it's so much more logical and simpler than S1. But we haven't covered a huge deal yet, just suvat, resolving, N2/N2 on a slope, pulleys and I covered vectors myself. I'm finding it easy and I'm just wondering what you found the hardest in M1. My friend said she thought pulleys on a slope were the worst.
Please tell me your humble onions.