In one of the Masters of the Bare Bow vídeos there is a short segment, I believe on the benefits of using blank bale to experiment with new techniques, where someone, I believe it was Denny Sturgis Jr, converted to shooting with the string pulling into the side of his chest. I believe it could be a very effective way to shoot, as the alignment is much better than a more open stance, provided you have enough range of motion to swivel your neck around far enough to aim the bow. Well endowed women tend to use this method as well, for obvious reasons.