My very good ski buddy and I were discussing what factors contribute to a failure by a skier to be in that desired position all the pros achieve at the completion of the turn where the handle is practically pinned to their thigh. He offered that reaching for the handle too soon is one of the most glaring. I believe that there are probably a number of other possible causes that vary from skier to skier. For example, a lot skiers simply have the habit or the muscle memory of trailing the hips or being slightly hitched entering the turn to begin with which prevents them from every getting the hips to the handle. As Horton has said many times, they would not be "tall into the ball". Another one would be habitually turning the head too soon which leads to upper body rotation. In your experience, can you point to other factors that you have either seen or worked on improving yourself that hampers that important position at the completion of the turn?