"I second CarsII"
My suggestion, remove it!!!! Not worth the headache!! I've tried two, and after spending half of my time removing and re-installing setup at three seperate west coast events I finally decided to replace the "Smooth Stop" with an old reliable button valve(and yes I too used deiletric silicone grease). Enjoyed my day, and never touched a wrench....or lube......or a fine "four" letter word.