Gus: I was reading your post from when you first got him. Except for the larger head, Gus looks like my Rover who was a lab/golden retriever mix. I picked him because he WAS brindle. His head wasn't as large as Gus's but he had the same white chest. He got to about 55-60#...very lean dog. Can't wait to watch him grow up. How much does he weigh now?