I've changed the folder hierarchy so it's grade based, rather than time-based now.
The folders are now public to edit. If you add a new grade range to the folders, please make the folder public:
-Click "get sharing link"
-Choose "more"
-Change settings to "public"
-Change "anyone can view" to "anyone can edit".
Paul, I'll try your problems during my next board session and suggest grades. I guess one of my benchmarks at the moment is "LH Long" for 7A. It would be good to know how far off I am with that one.
I think people just need to try one another's problems to get some kind of consensus.