Why not ask Peter's advice?
If you are thinking of using the nipples (zirks) at the top of the kingpins as another grease point, as many will know, I and a few others disagree with this approach. What's the point of injecting grease from two different locations if it arrives at the same point?
I have had two Morgans with nipples top and bottom, I have found that if you only grease from the bottom that little grease gets up the kingpin, however if you grease from the top then I can pump around 2/3 of a hand pump grease gun into it before the grease starts to seep out at the bottom, the tube for the grease being about 1.5" diameter and about 8" long, so a reasonable amount of grease, then I pump the bottom one and it just takes about 3-4 pumps before more grease oozes out at the bearing under the top spring. Where all the grease goes before it needs a regrease at around 800 miles god only knows. I have also taken to using Lucas RedNTacky grease which lasts longer, is highly water repellent, and is great for sliding surfaces.
