There seems to be a difference of opinion on the definition of DRAW LENGTH as it applies to a person. Of course its not in Websters Dictionary so here is how I would describe it. It is the position of both your arms at full draw that allows you to have proper form which obviously will allow you to shoot the best. It is a measurement of arm position. When you establish this measurement, it should be the same for every bow you shoot, loop or no loop. If you add a loop and don't shorten draw length, your draw arm will move back slightly and the position of your arms that was established above will change.

EXAMPLE: If you were buying a new bow with a string loop and you told the salesperson you have a 30'' draw length, he should set the bow at 29 1/2'' and the 1/2'' loop would make it 30''.

For me personally a 1/2'' difference, longer or shorter makes a world of difference in how the bow feels.

Maybe some guys who own or work at a bow shop could give there professional opinions.