This is the exercise to which I'm referring http://www.youtube.com/watch?v=-IB4omxzqOg. Many fellow trumpet players have praised this exercise as a chop builder for both range and endurance. My question however: The guy in the video says that after you do this exercise you should be done for the day. Other trumpet players who also do this exercise have agreed, saying that it's so hard on your chops that you should break for at least an hour, if not be done altogether after playing this exercise. My question is wouldn't that mean you would have to do this exercise as the very LAST thing in your practice? Doing it at the end of a practice session could easily make the exercise overkill, not to mention the fact that you won't be able to play as high. Can anyone who has done/regularly does this exercise explain this?