So it's time for me to get a new tux shirt. But the big question is this: How much "bigger" do I go, knowing that my arms are going to bent when I'm playing (meaning the sleeves have to be slightly longer) and my neck is going to expand? I'm already very tall and skinny, so I don't want to get a shirt that I'm going to "swim" in because it's too wide. How much "bigger" should I go? Any suggestions? Thanks!