Hi I have a 1 year old GSD puppy who is about 110 LBS, hes a big boy and soo smart, we love that hes giant! I just had a question about his back, I know he def doesnt have a slopped back for his legs are very straight and his back has no slope, but it almost has a hump in it? would he still be concidered a straight back? is a bit of a hump normal? Thanks for your time!!