You might have to wait until his tail grows out enough to hide the attachment part of the tail extension. There is no mane extensions that I know of. The attachment you are referring to while lunging him, sounds like a form a of rhythm collector. It's doesn't teach them to collect up & lower their head under saddle, just shows you can they can do it while being lunged with it on. Take it off & head goes up. Also that device can cause back misalignment.