The revolution pivots at the trailer end of the pin box and not at the hitch, correct?
If that's the case, I'd say no grease at the hitch. The other end? I suspect that Reese would provide guidance on that.
I have a Pullrite, so similar situation, and I spray "Slip Plate" on my hitch head to help the pin box slide on and off the hitch head a bit easier.
2016 Jayco Eagle HT 29.5BHDS (ordered 12/30/15, delivered 3/8/16)
2015 F-350 crew cab, short bed, 6.7L PSD, Pullrite Superglide 3300 hitch