My take on the lines is generic overview~depends on the pedigree, individual dog of course!
WG are fairly sporty, a bit lower threshold, biddable with great hunt, prey and pack drives.
East(DDR) are sometimes a bit lower drive as compared to the WG, bone structure is heavier than the WG's, and as we all read, slower to mature than the WG's.
Czech's are fairly serious, carry some suspicion, not what I'd consider a sport type but have plenty of drive(not over the top though). Also slower to mature.
I prefer a blend of WG/Czech....serious/civil with the drives balanced out.
I have a 4 yr old WG/Czech male, he's easy to live with, great off switch. He's always been a good dog in the house with manners(and his littermates are the same way, we keep in touch~litter is consistent) Aloof when out in public, but very steady and stable around all environments. Though he does have his bubble and isn't into strangers just approaching him to touch him. I respect that. He's not aggressive, just not into people he doesn't know touching him. Very neutral to other dogs, no reactivity. In his crate in the vehicle he's also not reactive, though if a stranger would get very close to his crate, and he will low warning growl.
He is a thinking dog, and doesn't just do what is asked because there is a ball involved. Threshold is a bit high. In protection, he loves the fight/ challenge and tries to cheat if he 'thinks' he can get away with it! He will try anything asked of him(other than the retrieves, he for some reason decided he needed some schooling on that, age related?)
I think the blending of working lines(if the pedigrees are matched correctly) is great, balancing certain aspects that may be too much individually.
Last edited by onyx'girl; 08-21-2013 at 11:23 PM.