i find that when switching to traditional archery the form changes so much that there is a signifigant diference in draw length. one reason is anchor point, another is form. if i open my chest up the whole way as i do with a compound, then i can draw to 30" easily, just anchoring to my lip. however, trad, equipment is more snap style shooting, with more of a bent elbow and wrist, and the anchor instead moving to the corner of your lip in most cases, the string being released as you meet your target and anchor point at the same time.