Theres a 40lb difference between Mom and Dad... just by average your male should be 85 or so lbs in good shape, he could hit 150 fat, ya know what I mean? I had a litter of AB about 11 years old, and there 6 males, 4 were exactly the average between mother and father, and 2 hit well above both parents, showing the hidden ingredients in their lines. 1 males hit 135lbs and stood 29 solid inches tall and the other was 120lbs at the same height, yet the other 4 were 80lbs in shape. My dogs were not Johnson line dogs either, they were a combination of rode hawg bulldogs and darkside bulldogs on the mothers side, and the fathers side was dorsey dogs.
On another point, pups take 70% of their genetics from their Mothers. And females throw pups who are similar to their(females) father.
As far as my search for a good GSD, Ive already found the place Id get one from, now I just have to decide if I want to pull the trigger on it or not.