I thought I read somewhere that a company (maybe Truvativ?) makes a chainring bolt which, instead of having that dumb flat slot on the backside, has a hole for a hex key. So you could use a 5mm on the front side to tighten/loosen and another hex key the back side to keep it still. Anyone have any more info on this, and where I could find such things, specifically for a Record 9sp cankset? I am trying to cure an annoying tick in my crankset and I am wondering if the ability to torque the chainring bolts down a little more (but yes I know - not too much) might help.
Any info is appreciated. Thanks!