Yet, look at the Schutzhund and police work that is done with Shepherds... I mean scaling walls and all that sort of thing. Also I bet that a poodle or a l terrier or many of the herding dogs would be good, or a schnauzer or a dobe or an eskie... Hmmm, I am thinking that one woudl adjust their approach to fit their individual dog, play up their strengths and support their weaker areas. With regular practice they will still be stronger if you approach it sensibly. When you watch the video that has the other breeds in it you can see how different they are but I think it is fantastic to see that dachshund out there workin it! My dog is never going to be able to leap like Tret, and his front is not built that well so I will always limit his jumping. Also, he is not a focused gung ho off-leash able dog, but still we will dream our little dreams and bond and run around and have fun. Also this is not so different from disc dog or agility any other thing where dogs really work out and if you want to do it hard core you have to make a real commitment . Most of us just aren't that serious. The trick is to try to make sure one's dog doesn't suffer because you are inconsistent in your practice.