I am curious what exercises you do to achieve that? I think I could use that as well....Exercises away from the horn can really help build the facial muscles. Everything works so much better now---tone, dynamics, articulation, intonation, vibrato (less dependence on jaw pressure means the jaw is freer to move and adjust pitch). A pleasant side-effect is that when I hacve a few days where I can't find time to practise (which happens all too often lately), I can keep up the exercises and don't fell like I'm starting from scratch when I come back.