I don't make any decisions on a pup until they are at least 8 months old, like Mike said they change so much that you can't possibly know what they will end up doing at a year and a half old.
I just don't think a pup being hungry at 10-12 weeks old and lookin for food has much to do with whether or not it will make a hogdog. There are plenty of strays runnin around that hunt for food every day but I don't know of many people that are catching hogs with them, I think we all wish it was that easy though..
The only way, in my opinion, to know for sure that you're keeping the best dogs out of a litter is to raise the whole litter and hunt them.. I know a lot of people don't want to do that , including myself... I try to keep as many as I can and get the rest to the people I hunt with and know well..
Trying to pick the best pup out of a litter at 10-12 weeks old is about like trying to catch hogs with a bluetick, it just ain't gonna happen very often
