This may seem oversimplified but do you draw when bent over at the waist or do you draw while standing upright and then bend at the waist towrads your target?

I would suggest drawing and then bending forward and downhill to acquire your target, all the while keeping your arm, shoulders, and drawing arm at right angles with your back. In other words, get your form correct and then bend slight forward to sight at the target.

Hope this sheds some light on the subject.