I guess I am the only anti-loctite flyer. I have been flying since 1958 and have never used any type of loctite. I believe that if you do a proper pre-flight and use anti-seize when you assemble your model, problems are few. A clean bolt or screw, with anti-seize, properly torqued/tightened will stay there. Do not retighten when bolts or screws are hot but wait until first flight when engine is cold. On most OS mufflers if you continually tighten the bolts while engine is in use/warm, the bolt will snap. For those applications where you cannot get to the bolt due to cowls or bulkheads just safety wire during assembly. Just my three cents