I think the poorest part of my PPL was how to understand NOTAMs. I know how to get them taught myself that but I still dont really understand enough to know if they affect me or not. Its one subject the books dont seem to cover except for the fact you need to look at them.
I have coverd flight plans but will be revising that soon on a x channel trip, as for spinning it is planned that I give it a go with an instructor I trust of course. I was taught leaning the mixture on last years x channel trip havent tried it since as I rarely fly high enough.