Got a challenge for ya Mike! Put a scrap piece on a tube for the lower section, and turn it round, and keep getting thinner with a basically straight profile (maybe slight curve), and in one spot cut through to the tube... then you can see how much thinner you can get the lower barrel.
You folks make me feel so good. Thanks so much for the encouragement. I strive to be a fraction as good as most of you and I will have accomplished something amazing. Thank you all for coaching, mentoring, tutoring, and being great friends.