Do all the above plus. wherever you have metal to metal contact with an accessory and the riser, you should put moleskin between them. Put string leeches on your cable. Once everything is set right where you want it, put the milder thread lock on all your screws and it will keep them from coming loose and rattling. An extra set of limb savers will help some and they weigh almost nothing. When you get done, your bow may be quieter than some longbows, and that will be at almost twice the speed.