Tom asked me to start doing breath attacks and playing at pppp. The point being to get a more efficient buzz, and I believe it's working for me!!! For about 3 weeks before I met with Tom I had been doing 3.5 hour days, and I'd feel very tired by now (I'm 1.5 hours into my day). I had, at one point, added range and endurance exercises to my lip flexibilities session, but was having a very hard time playing even a high C. Toward the end of my flexibilies today the only thing feeling slightly tired were my corners, and I took a short break and played up to high C at pppp. It came out like it was nothing!!! So, I tried going a little higher, and suprisingly I didn't really have to reach that hard for the G above high C. It felt like it just whistled out!!! This approach feels so much better, and it's what I thought I was doing, but apparently not. So, I'm playing long tones with breath attacks and playing at pppp or as quietly as I can physically play. I'm doing breath attacks on my flexibilities and doing a decrescendo on the last note down to pppp and beyond. Wow! It's really working for me... it feels a little strange and I've lost some control, but it feels like something that I can keep working on and learn to control.