So how do you measure your DL?

I did a wing span on myself and got 28" . I ordered my Hoyt 28" . Now reguardless loop or not I am 28 and my bow is 28. If I add a loop I will anchor on my cheek 1/2 inch farther back but the string still touches my nose in the same place. the bow still draws 28" .

I will agree that you may think it is longer because you are farther back on your face but other than that nothing has changed. Both are still 28" . Black and White measurements will not change. your anchor point will.