right now I'm borrowing a bach strad from one of my mom's friends. It's early 70's, ML, 37 bell. The thing is a thrill to play, it has an amazing core and everything seems pretty good on it. It's perfect, except for the upper register. The horn would be perfect except that the slotting in the upper register is terrible. All of you bachaholics out there... how can I improve this, or is this horn just "different"?