Sorry to go on...it may be because I'm used to GSDs/Westie/Collie types which have longer hair.
I've uploaded 3 photos from today. He's 7½ months old now. I don't know how clear it will be from the photos, but I can clearly see all his ribs. Does he look healthy to you?
I was feeding him kibble according to weight. I'm just switching him to raw, by weight, of course.