It's often easier to explain keeping your weight in your heels by telling riders to keep them down. it's very hard to have your heels down and your weight not in them. =) I suspect since a lot of riders start out in hunt seat this is why you see the trend, but you are very correct, hells should not be jammed down unnaturally. They only need to be low enough to keep your weight in them, and thank you for clairfying my blonde moment. =)