I have one of Tom and Pam's pups, and his parents, Posh and Razzle, are, I believe in the 11-12 lb range, isn't that right, Tom? Kodi ended up a trim 16 1/2 lbs, at the top of the height range. I remember that when we were assessing the pups, Pam had said that Kodi was "heavier boned" than the other pups, though I had no idea what that really meant.
But I wanted a dog as a performance dog, not for conformation showing or breeding, so I really didn't care about his size. The pup in the litter who was clearly much smaller than the others was not a candidate for me for other reasons, though I'm sure he made someone else a perfect pet.
I'm sure Pam and Tom knew that Kodi wasn't going to be a "small" Hav, but I'm not sure they could have predicted he would get as large as he did, either.
Oh, and Kodi turned out to be EXACTLY what I wanted... He's not only the love of my life, but is also an AMAZING performance dog in both Obedience and Agility.