I am still a novice to bowhunting. I bought a Bear Species RTH a little over a month ago and I have figured out my draw length, 68" divided by 2.5 is 27". So, my question is what should be my arrow length? I have read that you want your arrow length .05" to 1" longer than your draw length, is that true? If not what is the rule? Thank you for all of your info and wisdom!!