This is a stale thread now, but I recently installed a Miche Primato BB in a Gunnar Crosshairs for a triple crank. I really reefed on the cups, but they moved twice on me, walking inward until the inner chainring started rubbing against the frame. Obviously, after the first time, I cranked down on the cups as hard as I dared (I'm no wimp, and have decades of experience as a bicycle and auto mechanic), still, the cups moved again. At least the second time, I had the tools with me! The cups were a good fit, barely hand-turnable. If I were to use the BB again, I would not grease the threads, but I would try Teflon tape and, if that didn't work, Locktite.