Rejigging my ratings

When I started rating my books as I read them, I picked 7/10 as my rating for an average read. That left me with three values above that for good books, but lately I've been finding that a bit limiting.

I've been wavering about making a change, as it will make it harder to compare recent reads to ones from longer ago, but I've decided I really need to do it.

So from now on, my rating scheme will essentially be as follows:

10 - excellent, blew me away (or occasionally "exactly what I needed right now")
9 - upper end of "very good"
8 - lower end of "very good"
7 - uppper end of "average"
6 - lower end of "average"
5 and below - below average to bad