DLP08

First question : I'm looking for a bag that can hold my trumpet, a few mouthpieces, and all my mutes. Does such a thing exist? (5 Mutes)

Second : I normally play on a Bach 3c, but for a few of the more "stratospherical" (is that even a word?) songs in jazz I switch to a 13a4a (sometimes even a 6a4a) to get the sound I desire. I find that when I switch back to my 3c after playing on them though that it becomes a bit too tough to handle. Any advice on this matter and how I can be comfortable switching between the two? Thanks! (Not the same DLP as before. Actually a friend of his)