I always turn my hollow forms to final thickness of no more than a 1/4". Most times it is less. I soak the pith with thin CA. As soon as I turn it around and finish the bottom I give it a soak inside and out with Minwax Antique Oil. I pour the AO inside and move it around till there are no dry spots. I paint the outside with a foam brush keeping it wet for at least 10 minutes. I wipe off the excess and let it dry for 24 hrs then do it again generally for 3 to 4 coats. I then buff it. I know of a few that leave it at 10% thickness and soak in DNA for a few days then let it dry. I think for me the key is turn it thin and get the finish on as soon as it comes off the lathe. Another key is to use a laser or measure a lot when you start getting to the final thickness.
Retirement: That’s when you return from work one day
and say, “Hi, Honey, I’m home – forever.”
To succeed in life, you need three things: a wishbone, a backbone and a funnybone.