[Closed] Pivot bearings

I'm off to Breckenridge in a few weeks and have just forked out £90 for the FOURTEEN bearings needed by the back end of my Knolly - I am starting to appreciate the rudimentary design of my single pivot bikes a bit more.

But when I finally get the old bearings out, is there any particular type of grease I should use between the bearing and the frame? Only asking bc the main pivot bearings has clearly had copper grease used when they were fitted.

Thanks as ever to the STW Massive for advice.