As there was some talk on what to do with the see-saw I thought to publish those photos of Bi (by Andraz Cerar) from a recent competition - this is how 2on2off should look like on a see-saw, 2off already in the air:). If the dog first stops on a see-saw and then only goes into the position after see-saw is on the ground, then I would prefer 4on. It's faster and the dog doesn't need to move on a still bouncy see-saw, it's just not very comfortable. For "direct 2on2off" you of course need the dog who is completely comfortable with the see-saw, so don't forget the preparation work! I think every agility dog should know how to skate-board first!
As the pictures tell more than a million words, let me also publish this one, again from a recent competition, again by Andraz, with not such a perfect contact on a dog-walk, but again - not too bad either:). The reason why this is not too bad is because hind feet are that well separated. She is obviously NOT jumping, she is just a puppy, learning what to do with that looong stride of hers in order to come to the very end of all the possible dog-walks. Not an easy job!
This is something you will see here and there with a young dog, but this is nothing to worry about, Bu went through the same process, it goes away with more experience. This is just to explain why I always ask if hind feet were separated or not when people report the dog is missing them. If your dog misses the contact, it should at least be done with a style!:) Bi sure has plenty of that one!:)