I picked up a samick discovery riser and a set of samick foam core 40lb limbs. This is my first ilf bow. I notice the first shot after you string it up can be noisy. I have heard that is pretty normal. Any opinions on this? I am shooting off a screw in elevated rest. Pretty much been shooting off the shelf with all my other bows. I have some 500 spine arrows flying well. Frankly I was a bit surprised with a 27 1/2 in draw and with @38 lbs on my fingers that 600 spine arrows are way to light. I was wondering if the elevated rest By default allows for a slightly stiffer arrow?