Hello, I am currently a senior in HS and have been using the same horn for the last 8 years or so. It is a Bach TR300 student model and now it is showing signs of wear - it is going through some massive dezincification especially where my fingers are. Not only that but I always feel like the sound produced is much better sounding on another non-student model horn. Now, I was never a good trumpeter (to my standards) until the last couple of years when I really began to be consistent on high notes and endurance. I can now hit the high C (with some pressure) and go through a band class without getting a tired (this is actually a big accomplishment for me). Now I used the default Bach 7C mouthpiece until last year when I switched to a Faxx 5C, which I think helped me get a broader sound. The problem I am having is that will getting a new horn improve my sound or ease my playing in anyway? Because I always feel like I need to work twice as hard as the person next to me to do something. Also would a change in mouthpiece help at all too? All suggestions would be appreciated.