No doubt Pastor everything you say is true. I like to think of them as a teenager, where as a lab is more like a preteen. The chessy is just a little more intelligent but with that comes WHY. So basic obedience is very much needed to keep them under control. If you maintain the leader role they will peddle along through the day without a snag. But they crave new tasks in training, which just makes them smarter.
My wife has one she took over as her dog. I had to teach it the cute tricks she likes. When it comes time for her to do something she doesn't want to do, the wife commands and the dog looks at me. I snap my fingers and the dog goes outside or whatever the wifes command was. The dog is a spoiled lap dog but hunts tirelessly. So they can be a family pet and also do what you want without being ruined. Also fetch with kids doesn't ruin them, they will play with people but when they work in the field or training they know the difference and fall back to doing it the way you want.
Blessings