They were ok, the 3/8 was a bit sharper with dogs, as long as they left him him alone he was ok.
As i said all dogs are different, i got a 1x collie grey pup now he is 23ins and 52lb [7months old]
he is a big pup, he will be a strong dog when he grows up. Some colliexs can be nasty feckers aswell.
Any lurcher over 55lb , can do damage. Bullxs are powerfull dogs yes, so are coursing greyhounds
when they kick off, the damage they do is unbelievable
BIRD
i know you can get bad uns in all x's i've seen a few nowty collie x's