Thank all you Guys for the information. I like to try new ways of doing things and I want to try this. I do have some questions, if you would be so kind:
1. I note that everyone is talking about a white wine. Does this also work for reds?
2. I had the same thought as Robie on the Bentonite. I think the kits that are referenced have that "good" bentonite that dissolves in water. There is also the kind that turns back into mud and I would be reluctant to put that in my barrels.
3. When we made wine at home many years ago, we would ferment in an open barrel for about 10-14 days and then move to a closed barrel with the bung hole open. It was important to keep the level of the wine up to the diameter of the bung hole during this period. The wine would continue to ferment in that barrel for about 5 weeks. This seems to be similar to what you are doing, but it was probably down to about SG 1.020 or so when we moved it from the "working barrel" to the closed barrel. We, of course, did not have an hydrometer at the time. I just cannot imagine the amount of airspace one would need for the initial phase of fermentation.
I look forward to trying this. Thanks.