After reading all the comments, drawing on my past experience, and watching Adam Rapa (amoung others) ... I am trying to put together a good range exercise for my daily routine. I don't think my chops are up to my old routine yet. So here is the issue and question My range currently goes up to a point and the sound is generally full but cuts out ( how many times have you read that) when I listen to other trumpet player the tone seems to change a little as they get higher.. a bit thinnner so from what everyone (except the double high C salesman) seems to say play soft, don't strain, and do slurs (among other things) so I figured if I backed off and played arpegios almost just sliding up and letting the tone thin out earlier I could softly eek out some higher pitches. The purpose being to get my chops use to vibrating faster. It also keeps me from re-adjusting the mouthpiece. I do this down into the pedal zone and then add another interval to put me back above the staff. I end up covering 3 octaves when I get to pedal C and I do it twice per set. so the exercise goes like this low c arpeggio up to high c or e if I can hit it then back down and repeat. rest then low b ... same thing down to double pedal f well..... what do you think?