Hmmm - all synthetic and you lose the ball socket. All castor and you have a varnishing problem (how many used Hopps gun cleaner, a metal brush, or both to remove varnish?). How about a combo of both lubes?
I am surprised that the Texaco doesn't get excessive wear with low oil content considering the larger load on the conrod with the large prop...but you can't argue with success.

George