Thank You for identification of this same error in my procedure when I was performing a front suspension upgrade last winter. I thought, "Oh goodie, I get to smear this high-tech Copper grease all over, wont this be fun". So, I did.No instructions with the Gee-Whiz, High-Tech product informing me NOT to (I dug through the garbage looking for it). Driving along thinking I am so smart & enjoying my ride for a few weeks.
Then X5 Girl comes along & informs me (well, ALL of us) that its for the pin & only for installation & to avoid grease between the outside housing (clam-shell clamp) and the poly bush.
Afer review of my Suspension Tuning Text (from way back in the day) it is discussed that Anti-Sway bushings went from rubber to Poly to decrease the "mash-effect" where, while in a turn, the inside bush is "mashed" by the Anti-Sway bar until a positive connection is made between the bar & bush primarily from FRICTION. only after that occurrs will torque be tranferred along the bar.....
Well, grease kinda delays if not prevents the full effect of that function.

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