I have not done this again. Saturday is pizza experiment day, and today I'm neck deep in poolish made with too much yeast because of poor poolish math skills. So tomorrow's doughs are NY style and Sicilian. I didn't make Garvey's formula.
All I did for dough prep was what I described in my first post. After that final four hours it rolled out paper thin like it wasn't even there. I baked it in my 36" Wolf gas oven on a stone at 450* on the middle rack. The oven had been hotter, set between 500 and the broiler setting and the broiler was run for 2-3 minutes at the end, for NY failure pies. They weren't horrible, but not great, and those pictures are in the NY forum.
Then I turned it down to 450* while I rolled this out and dressed it. The formula was for a 14" crust, but it could have easily made 18-19". I then flipped over a 16" cutter pan and cut the disc. I did not bake it in the pan, just cut it to size. I gently put it on the peel on parchment because I'm terrified to launch a skin that light and thin right off the peel. Got it on the stone and baked for about 8 1/2+- minutes. I was watching it and when those little black areas showed up I took it out. Cooled it for a couple minutes on a rack. I let my 16 year old daughter take the fancy photos, then slice and eat.
'Twas good. Reminded us of Zaffiro's, a pretty famous ultra thin/cracker crust place in Milwaukee that's been around for like 50 years. The original dive bar type joint on the lower east side of Beertown, not the locations they now have in Marcus Theatre multiplexes. Those aren't bueno.