@flippant the CSO method is on page 5-297. Instead of the CSO pan I use a Lodge L8SKL cast iron pan which fits beautifully in the CSO. I use an EXO Super Peel to transfer the scored French lean dough to the preheated pan. I've made perhaps a dozen boules this way and have been delighted with all but one, and even that was eatable. (Baguettes I bake in my big oven.)
I've been hoping one of us will test the lid of a Lodge combination cooker in the CSO. It looks like it might well fit and the sides are more gently rounded than the L8SKL.
Edit: as to corrections, I preheat on convection bake rather than on steam bake, switching over shortly before loading. I also bake a couple minutes longer than MB suggests.