Yesterday, I took out my aristocrat after it had been sitting for about a month now. Decided to get the valves moving and some air going through it. Well after an hour of working to get the valves to move, I blew a note and BAM. I went to play pp and it just blasted. After recovering from the immense noise that came out, it took about thirty minutes for me to get accustomed to playing the horn. I was wondering is it normal to have trouble going between two different horns?