CBM
If you don' t want to change your anchor point then your draw length will be shorter with a loop.At least I shoot a shorter draw with one and so do all the people that I know.More important to maintain your anchor than the draw length of the bow.
I understand what your saying but I don' t see the point. If you decrease your draw length and add a loop , ending up with the same anchor point.......what has been lost ? Speed ??
You decrease your bows draw length a half inch = 5 fps , but you reduced the drag on the string by replacing heavier brass nocks or eliminator buttons with a lighter string loop.........so realistically you may have lost 1 fps maybe. What' s the difference ? I still don' t see where he' s losing anything !!