I'm not familiar with what the bent mouthpieces are designed to overcome, but for those that are, would this be a case in which a bent mouthpiece would allow her to get the instrument up and equally distribute mouthpiece pressure on both lips?
Edit: Here's a picture, via the Warburton website (not me!), of what a bent mouthpiece looks like. Also, Patrick Hession on the Maynard Ferguson band uses a bent piece.
