So I'm getting ready to go off to college as a jazz major pretty soon, and I'm considering getting a new and improved double bass. I've been fantasizing about a 5 string but I don't know how often the B string would be used in jazz, though I know it comes in handy for orchestral work. I'm also thinking 7/8 or 4/4 size being that I'm rather tall, and the general consensus seems to be that larger basses, with larger lower bouts get the biggest sound. Opinions?