Rollkur
Much is being said about rollkur today. The Aspirant Technique is seeded in Classical Dressage which means anything that is forced would not be acceptable. Taking the horse beyond round and deep and over stretching the spine into hyperflexion, behind the vertical, would be potentially damaging, not to mention the negative effect it may have on the wind pipe, jaw, etc.  Round and deep lifts the back up, strengthening it's ability to carry weight. On the other hand allowing the horse to stretch its nose out and up, causing the back to drop is also potentially harmful to the spine, because it weakens the backs ability to carry weight. So let's be logical and simply ride our horses softly, kindly and classically.