Doris I have heard that as well about putting the paste on the crown helping protect it. There was someone else that does that besides Peat, but I can remember who it was.
I've thought about doing that, but I would need to mix up my own batch and I really have no clue as to how much lanolin/BAP ratio to mix together. I've never seen a large quantity for sell, just the small one that Cary sells.