personally i like the bigger type dog 14" to the leg mainly b'cous of the ground we hunt,loads of levels round her,a smaller type just wouldnt be able to get to where he needed to be to get to foxy all this stuff about "he's to big" or "he's to small for the job is a load of b******s size dont come into it,it's all down to what the dog got ,seen some big terriers in some tight places where you'ed never think they'ed get,not knocking the smaller type but when the goin get tuff the big get goin different dogs for different jobs i think