Hi all, I somehow way back when trained my muscles to play way off to the left. I play comfortably and can produce a pretty good sound with this mouthpiece placement. I had a teacher for a short time in college that tried to get me to start over and learn to play centered and he insisted that I use the 7C mouthpiece only. At that time it was becoming less important, I became frustrated and quit. Over the last couple years I've renewed my interest. I picked up a good horn and my favorite Schilke 14A4A. This summer I started determined to learn to play perfectly centered and was feeling ok about it. Then I saw a good player on television playing way off to the left and decided if it worked for him why am I working to change? I could instead focus my practice time improving on what I already have. I went back to what was comfortable and am now playing with as much endurance and range as ever. Is there anything wrong with this? Will this configuration screw up my further development?