How honest a dog is IMO, is a constant. In other words a dogs gameness is absolute. It must manifest though and of course the handler plays a roll in that. Different variables and intensity of those variables will show you the cur. Some folks are better at avoiding or nullifying those variables.

As for the physical attributes. Everything can be refined but the more you refine something the increments become exponentially smaller. Like previously mentioned, some folks whet the blade better than others.

Something must be seen in order for it to manifest. At the same time other things need to stay unseen. It's always interesting to see one mans dogs in another good mans hands. Everyone has a different gauntlet with different variables and intensities.