I figured we'd be spending months learning about each piece of equipment, but he learns so fast he's standing around waiting for me to catch up! I need to work on cross-overs and off hand work. Rocco needs teeter-totter and weaves....but we're not worrying about that right now. He's got years ahead of him to learn it all, and I don't want to pressure him.
Believe it or not, treat motivated dogs are the best candidates. You wouldn't just put it on top though. The first time Rocco and I did the A frame, the trainer gave him a little tiny treat every foot of the frame. Probably why he loves that piece of equipment so much now.