Pullrite Superlite - Best Dry Graphite Lubricant

The PB dry lube sounds interesting. What type of lube would you guys use on the square metal bars of the equalizer hitch? I normally use a Molybdenum grease because i think it has a high shear rating and those arms are under so much pressure. But its nasty stuff. Feel bad when people brush up on the ends of the bars because they can get grease on nice clothers. A dry lube sounds better.