My previous post about the difference in the teeter for large and small dogs kind of missed the point I was actually trying to make. Of course, the small dogs are only compared to the small dogs and large to large. However, what I am stressing is that the experience of the teeter is entirely different for the larger and smaller dogs. The larger dog simply goes on to the teeter and the next thing he knows, he is at the end of it and it is hitting the ground (oversimplification, I realize). The small dog has to go to the yellow part of the teeter and then wait patiently while it eventually tips enough to hit the ground. These are two very different experiences and, in many ways, can't be equated. I don't think there is any other obstacle in agility where this is the case. For example, the larger-striding dog may get up and over the A-Frame faster than the small dog, but the experience for both dogs is essentially the same. To make the experience the same for all dogs on the teeter, you would have to use progressively heavier teeters as the dogs got bigger, so that they (also) had to learn to wait patiently in the yellow as the teeter slowly tipped to the ground. Obviously, this is an absurd concept, but it illustrates my point.