My old boy (CLM) is turning ten this spring and the hard hunts take a few days for him to get over now. I can see him really slowing this season. Starting discussions with wife on new pup and think I want to try a chessie this time. I like the look, I like the desire (that obviously varies from line to line and dog to dog) but am unsure over the difference (if there really is one) in training a lab versus a cbr. You read that it is different but often the writings don't delve into or explain the differences well. I have heard the 2 by 4 saw but think that is largely bs. Obviously I want a hunting dog but would need to be a decent family dog as well. I have a 3 year old daughter now and plans are for another child in the future. Would also need to tolerate hunting with other people and dogs. My CLM took a few years to mellow and get along with other people aside from me, immediate family, and my dad. What health clearances do I need or are desired? What lines are desirable? What lines to stay away from? In areas of the country to stay away from? I noticed in my area the breeders are few and those few don't have solid reviews or results from their lines.