RE: bow
Wax your string well.
Graphite all moving parts like cam axles.
Cranking down the limbs does set your bow to it's maximum poundage which should be on a sticker on a limb somewhere. If that is too heavy, back each limb adjustment off equally. One turn should be about 2 - 3 pounds.
I think I would have a tech look at it first. I've never had a bow blow up next to my face, and would take every precausion to avoid that! (lol)