
Hi juliemil,
>>thought the risk of anything happening between two dogs would be reduced if we asked the breeders about where and how the puppies have been handled as well as seeing the parents?<<
IMHO, it's a lottery with same sex dogs getting on I'm afraid. How puppies have been handled and their enviroment doesn't have any impact on their ability to get on with other dogs, only socialisation will do this and you can have a dog that plays with every dog in the park but won't necessarily accept another of his own sex living with him. Believe me, I know.
I have a speyed female, her coat got a lot thicker btw after the op, and a 21/2 yr complete male. I am in the process of getting another pup and really would have liked another male, but, although my male gets on with most dogs I wouldn't take the risk. We decided, just because our boy is a gentleman, doesn't necessarily mean the new one would be by the time he reached adolescence, which is when the fight for supremacy begins. :D So we opted for a bitch, older bitch is very good with all dogs, she has nothing to prove in terms of doggy prowess and will mother the pup. Male dog will take stick from her as she is a SHE and not a HE and when my pup has had a couple of seasons, to let her phsically mature she will also be speyed.
HTH.