I'm glad you got to go shoot! Sounds like you're having a blast. At your 27" draw you're probably shooting about 47#. This has your arrow weighing about 8.9 grains per pound, which is just fine for what your doing. All you need to do right now is shoot, and have fun! My Dad's hunting arrow is about the same gpp as you're shooting, and works fine on our Texas whitetail. My arrows are about 10.5 gpp. As far as your bow is concerned, I would never shoot an arrow lighter than 8 gpp. I've read a fair amount on the matter, and any lighter than that could be stressful on the bow. When you start thinking about a hunting arrow using 10 grains per pound is widely accepted. In the meantime, enjoy shooting!