Even when using a good four bolt stem and oversize handlebars, a punishing course can cause your handlebars to twist away from the sweet spot and throw you off your game. Usually careful and even tightening of the faceplate with a torque wrench is enough to keep everything in place but a little insurance never hurts. A couple drops of threadlocker between the bar and stem can be just what you need. It’s like Velcro for metal.
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dog4aday on 
Cool, good idea. I will try that! I believe two bold stems give a stronger hold, too.
two bolt…
Is that a custom drilling on the Ritchey stem?
you’re killing me dude!
Snap-on Torque wrench- that’s Pro!
DavidS, That drilling is all custom and not recommended for use by most people. It does away with one extra part of the bike though!