Thanks for the comments my friends!
My friend, Mat Egan (that posted that comment about the straight back on FB) was being sarcastic and funny. He has been working dogs for 20 years and loves a straight back GSD, and can't stand a deformed GSD. Leo, anyone is welcome on my thread! lol Your dogs look great!
Goku has been shooting straight up, getting his height and length. He has 2 years or more to fill out, I think he will be a hoss.