I would say yes definitely visible as a pup.
I picked my pup from a litter of 9, 5 dogs and 4 bitches I think.
Sire was 26" sal/grey, well buil dog and the Dam was a 23" sal/whip/grey but very whippety and lightly built.
I wanted a dog like the sire and picked the second biggest dog. The biggest dog was quieter and also I didn't like his colouring, my pup was really lively and came straight up and started chewing my shoe, lol. There were 2 which were visibly thicker set and chunkier. And he is turning out very similar to the sire. A lad on here picked a smaller bitch and she is tur