Last year I made a huge change in the style of trumpet I play. I went from a Bach with a 25 reversed leadpipe and 25bell .459 bore to a Marcinkiewicz CG470 .470 bore horn. The CG470 has a sound that to me is much smoother and transparent than the Bach. That is the best description I can give. I love the CG470. It is the best quality and easiest playing horn I have ever laid hands on , but I would like to have a little more character in the sound I am producing. The Bach has more of the sound I like but is very difficult for me to play above the staff and is still waiting for repairs from a pretty bad accident as well. I suppose it is possible that the CG470 just sounds different from behind the bell but I have listened to recordings of me playing both horns using the same mouthpiece. They sound different. The problem is that the recordings are in different venues using different low quality recording equipment through different sound systems. . What other factors can give your sound more character or core? Can certain mouthpieces achieve this more than others? Is there something I can practice to better produce the old sound in my head?