I have a Slayer SE II bow on which I just put new B cams and standard mods in order to get my draw correct. It had C cams with standard mods on it. My question is this. I have 4L limbs with as said new B cams and standard mods with new strings and cables at (Shoot String: 52.75" Split String: 39.25"). What is my poundage range going to be? Man what a diffrence I saw. What kind of speed can I expect with a 385 grain arrow?