Toward what end? What is the ultimate purpose of "a confident and more extensive upper-range, clearer triple tonguing, less pressure while playing, and more endurance?" Lip bends? Can't say I've ever used them - don't see what the purpose would be for. I wouldn't know a Stamp exercise if the book hit me in the forehead and I've played trumpet for 30+ years. Again, I ask, what's the end goal? Why are you working your technique? Surely you have something more in mind than building technique for the sake of technique, because technique for the sake of technique is pretty much useless. Just my opinion, of course. Do you have a solo and ensemble contest you'd like to win? A piece of music you'd like to be able to perform? An honor band you'd like to make? A higher chair placement in your school band? To win the section leader slot? (I'm going out on a limb based on your post that you are still in school of some kind.) THOSE are goals, and the technique will help you to achieve them by facilitating your ability to make MUSIC. Or at least that's what it "should" be IMO. That doesn't mean much without context - have I been away too long? I don't have a clue what he sounds like.