If you are talking about the top nipple you replaced instead of the oiler the tube is very narrow & some folk think it is unlikely grease will flow down it. See GoMog http://www.gomog.com/allmorgan/remotegreasing.html
I have extended the grease galley about 4" on all 3 of My Morgans. So I do not have to crawl under My Morgans to grease the lower bush. Extending the grease galley is not hard but it is time consuming. The KP must be removed from the drill press very often and the chips knocked out and blown out with compressed air. I doubt I can drill more than an 1/8" with out knocking the chips out. I use a 3 jawed chuck from My late to hold the pin. I suppose I could do this on My lathe but for some reason I am more comfortable using the drill press. If you can not do this yourself don't pay a Machinist to do it. Not worth it