To most new students, being horizontal makes them feel like they are head down even if they aren't.
We are vertical beings, and it is difficult to fight what we have spent all our lives learning. If they are horizontal, they cannot see forward as easily as when vertical, which is unnatural, and most of the times they think that horizontal is about 30 degrees off from where it really is.
One thing I've found that helps is getting new students close to level from the start, and putting them fairly horizontal in the water even when they are "kneeling" have them lean forward and basically be in a fin-pivot/prone position.
Another thing that divers with a little more experience is getting them to swim around in 3feet of water. If you're only a foot off the bottom, you need to be horizontal not to kick the bottom, and not to break the surface, so they get pretty good feedback when they go out of trim. It might not get them 100% horizontal, but that's not terribly important.
Tom
We are vertical beings, and it is difficult to fight what we have spent all our lives learning. If they are horizontal, they cannot see forward as easily as when vertical, which is unnatural, and most of the times they think that horizontal is about 30 degrees off from where it really is.
One thing I've found that helps is getting new students close to level from the start, and putting them fairly horizontal in the water even when they are "kneeling" have them lean forward and basically be in a fin-pivot/prone position.
Another thing that divers with a little more experience is getting them to swim around in 3feet of water. If you're only a foot off the bottom, you need to be horizontal not to kick the bottom, and not to break the surface, so they get pretty good feedback when they go out of trim. It might not get them 100% horizontal, but that's not terribly important.
Tom