Yep it can be confusing…. Some of the confusion may be from different area of the country. The heat/humidity in NC is vastly different from El Paso, Tx.
So… I will try to give different answers and maybe others can agree or add their preference.
A. Wall thickness turned green. The 1” is not the key. It would be if the bowl were 10” diameter. Rule of thumb is 10% of diameter. So a bowl in the 7-8” diameter would be left ¾”.
B. Plastic Bag? I only put them in a plastic bag if I know they will only be there a couple of days (or covering on the lathe while taking a break from turning.
C. Paper Bag – No Turning? I have never heard of this, only bagged after rough turning.
D. Remove Pith? – Yes and No. When rough turning make sure you “turn the pith out of it”. For preparing blanks I typically leave in log form (5-6 ft) and seal the ends on logs about 9” diameter or less. For logs about 10-16 inches I normally cut straight through the pith. For most logs over 16” I cut about 1.5” each side of the pith yielding a piece of quartersawn wood (this would leave it 3” thick), nice for small winged bows, platters, etc. Of course this center piece is again cut in half down the pith.
I only coat the end grain or in the case of splitting it, the end grain and maybe an inch of the cut. I have never coated the full cut surface.
This may vary a lot depending on your climate and storage conditions.
E. Wax/Paint? I use Anchor Seal, a wax solution. Some people do use latex paint; I understand it will crack over time but it is cheap and do in a pinch; much better than nothing. Some people also melt wax (like canning wax) and seal them; I’m sure it works fine but I have not tried it due to potential mess. At the least, wet the ends good and put a plastic bag over them until you get the sealer of your choice (within a week).
F: Rough Out Sealing: Again can vary. I do use DNA at times but also then seal and bag. When I seal I coat the end grain. Looking at it from the top/bottom the sealer is in a figure 8. If DNA is used I only seal the outside and end grain edge. If DNA is not used I do the figure 8 inside and out. I then place in a paper bag with no shavings and seal the bag. But if you are in an area with 20% humidity I would add some shaving for at least the first week.
Some people only coat the outside; some coa the entire rough turning inside and out. What you want to do is control moisture loss, not stop it.
Even with the above I have exceptions. I have found that with some wood 8” diameter I had better cut it or it will be split within a couple of weeks. Others I may leave 16” and never have a problem
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety. Benjamin Franklin