Goose:
Maybe it was me but in your other post it read like you were stating the thinner Avon was smaller and was really changing the rake which some may assume it is and not really understanding what is really happening here by using the other size. A lot of others state it is smaller when it's really thinner tire.
Now by raising the rear you are changing the rake. Good or bad I have no opinion on that adjustment. I would have to spend alot of time both ways to form one.