In my own practice I am trying to develop the ability to have the most amount of results with the least amount of effort and here is what I am finding... feel free to post a comment or thought. When practicing big trumpet or piccolo trumpet I dedicate a certain amount of time to playing soft in all registers... mostly I'll do this with Petrouchka (sp?), piccolo rep and etudes. I am finding that the quality of sound isn't as consistent or as clear across the scale yet, but I do have moments when I'll be in a register when I can play with a pretty open (velvety) sound and the texture of my body doesn't have to push or work... the sound just seems to happen. So, I'll assume that over time I'll get to where I can play more things across the scale of the instrument and allow myself to not get in the way. This skill is more of being able to concentrate on exactly where I begin to 'work' and where is it 'easy' and then being able to slowly expand that comfort zone. All of this stems from seeing dave bilger up close.... and thinking... I have got to make playing trumpet look that easy..... ...so...back to work.