So, I have this steel string acoustic guitar I haven't touched in some time. Last time I strung it up I may have gone with lighter strings than usual, because there's almost no relief. It's not back-bowed though, just checked. So I tried to loosen the rod, it moved less than 1/8 of a turn and then just won't loosen anymore. I don't think the rod on this particular guitar has ever been adjusted unless someone did it at the store. It's a cheap beater Washburn OM/000 sized acoustic. I've only encountered stiff truss rods when tightening, not when loosening. Tips? I thought of lubricating the nut/thread, but it's kind of hard to get into it from the soundhole side. Thanks guys.