I am currently having a Twiggy upright bass made for me by Kevin Siebold of Krappy Guitars (www.krappyguitars.com). While perusing his site, I looked at pictures of his Touchstyle guitars and the way their owners have wear them when standing. It strikes me as the perfect position for playing bass! The neck is mostly at a 30 degree angle with the player's body or the headstock is aligned with the left shoulder. Take a look and you'll see what I mean. Go ahead, I'll wait. Did you notice how the strap buttons are on both "horns" not on the upper horn and behind the bridge? Assuming everything goes well with my Twiggy, I think I'm going to have to have Kevin make me a "vertical bass."