Kane i have one at 16" and about 24lbs who i feel hasn`t got what it takes as last season he was put in a golden oppurtunity to show his worth from the pure size of the dog and he never, he showed me he was as big mentally as a little bayer on the other hand i have not long purchased a new terrier who is about 11 1/2 at the shoulder about 20lb`s and i dont know yet as i have only dug to him twice but he aint the type to be bullied to much, though lets face it if something wants to budge no matter how game he is he wont stop it purely through size............