As I've mentioned before, I have dexter who the breeder would have us believe would be twelve week old, but on vets first visit she says that when we got him he was only bout 6 weeks old , as it was 8 weeks according to owners when we picked him up, he was 2.4 kg on first vet visit, 4.25 kg two weeks later at owners 10 weeks sayso, but vet says it's more 8 weeks, and today at 10 week vets guess, owners say 12. He is a mere 5.6 kg, god bless him, have we the worlds smallest bull mastiff ever
eats well plays well, no issues, lean but healthy, but way way off the predictive growth chart.