Hello. I wonder if you could help me with a small, pleasant dilemma? I am trying to take cornet playing (in a Brass Band) as seriously as possible, and part of this for me involves playing the best instrument possible. I can either: 1) Keep the instrument I already have (a 1972 Besson International). It has no major issues, and it plays fine for me, I think. 2) Keep it and get it restored to as good a condition as possible. But how good is that? 3) Buy a new pro level instrument. I know that I don't really need a pro level instrument, but like almost everybody else, I think that it would put up the fewest obstacles to my improvement. I think the big question here is, how much and in what ways does an instrument deteriorate with age, and can that deterioration be reversed? More specifically, is it worth getting my cornet refurbished? What musical benefit would I be likely to see? I'm not interested in cosmetics, just playing characteristics. Your thoughts are welcome.