How do you remember flying knowledge?
We acquire lots of theoretical knowledge before and after PPL, and not all of it can be written off as arcane stuff one never needs. So, if we don't fly as often as the commercial folk, just what is the best way to keep that knowledge fresh and usable?
I see people asking questions on here which get replies from members who plainly have a good grip on their subject. If any of you are in the category of hobby flyers (albeit with a pro attitude), what do you do to get that fluency? I fly average hours for a PPL (maybe a few more actually) and I generally have some reading materials 'on the go' and I book time with instructors when I feel rusty - but I'm not confident I'd pass all the theory exams if I took them again now. And I think some of the stuff I've forgotten is likely to be important some day. I think I'd enjoy flying more if I felt I had a good command of such things.