First off, I want to appologize for the fact that I only have one cellphone pic to ask my question off, but I hope it is enough to get some input from.

When I started college, my archery coach switched my DL from 29 3/8" (I agree this was way too long)to 27 3/8". I've been shooting this for a couple months now and the more I shoot, the more I feel that my bow arm isn't straight enough. I feel slightly bunched up and it seems like I would have better bone-bone contact and a more inline bow arm if I made my DL a little longer. I took a pic tonight and it looks like my bow arm elbow is rather bent. I realize its hard to get a good idea based only off of this pic, but do you think I could get away with moving up to the 28" modules where I could try 27 5/8", 28", and 28 3/8" draw lengths?

Thanks.