Well put. This is why I like to keep as many as possible for as long as possible. Sometimes there are pups that looks and acts nothing like what you expected from the litter. I have had pups that where shy and you barley noticed amongst the others. That I thought to myself, this pups will only be suitable for a pet home. To Later bloom out and be one of the best in the litter. Some dogs you just know from the day they are born, that this is one is a keeper. If you have patience, others can give you a pleasant surprise. There are no absolutes in these dogs, and that is what makes it so inspiring. However in general I use the things mentioned in my earlier post.