A modern day pleasure horse that's bred specifically for the pleasure pen will not need any training or gadgets to learn to carry their head level, their conformation makes that the most comfortable headset for them. I've NEVER used any sort of gadget on my mare to force her head down.. in fact I sometimes find myself asking her to pick her head up because she gets lazy and tries to get our of work. I just have to pick up my hand slightly and she gets the message and picks herself back up.
It's really annoying when people group ALL pleasure people into the "head tying, making them go unnatural" category. There's bad seeds in every discipline. It would be like me saying everyone who does dressage does rollkur and forces their horses chin to their chest, but I don't do that. Why? Because I know not everyone who does dressage uses rollkur.
Also is this not a "real" trot, or is my mare just faking it?