What's funny is, I face the overload problem with my older horses, but I have never yet with her. She knows her limitations, and when to tell me she's had enough without becoming hard-headed and stubborn. I'm not entirely sure if it's that she wants to learn, though. She is very competitive, and has to be the best at anything she does. If she sees another horse doing it, she has to do it too and will do it once or twice. Then she seem so take a day to think about it, tries it again and does it perfectly. I'm a very laid back person, so it's hard keeping up with that sometimes.
I've imprinted dogs before, but this is my first horse. One thing I've noticed with her is that she is able to "tell" me when something is OK or not. She's taught me that the best way to work with a horse is to make it a two way conversation. To read the subtle signs, and stop when she says enough is enough. I was pretty tuned to them before her, but she's helped me a lot.
I can see some areas where they might be right about respecting the person they're working with. My situation is a bit odd, but I think it applies. Boss Lady's mother thinks of me as her foal, and corrects me as such. If I'm doing something stupid, she'll nip at me or paw gently. Not to hurt, but to let me know that I'm being a complete idiot and need to fix that as soon as possible. So Boss and I behave like sisters, our personalities are even similar. I keep expecting her to start borrowing my clothes and ID. So, to me, she's an (at times) annoying younger sibling that I'm showing the ropes. We don't have dominance issues because we don't feel the need to create any.
To me, the only issues from imprinting would be if the people doing it were already prone to being pushed around. When she was a few days old, she tested me once, and I responded gently but firmly by simple body language. We've had no issues since. My mom, however, has with her because no matter how tough she acts she is prone to being pushed about by humans, animals, and anything else. I always keep my emotional and personal state in check before I even attempt any training. Other than that, being too hovery is the only other way that I can see that you can mess it up.
Thanks, she really is great. Almost too smart lol.
Hugs and Blessed be