WOW. That's a significant amount of puppy! Yeah, I wasn't really sure what to expect from mine because he had enormous parents, both 130+ pounds and still lean, but he was the runt of the litter, maybe half the size of his siblings. I've had some that stayed small like him and I've had others that just exploded in size. Though I'm not against a smaller shepherd. I imagine it'll make it easier to run the agility tunnels.