i've not tried one of these yet, but with the reading i've done, i'm thinking a serious bed of coals n the oven right on the edge of it would work well. the grill idea sounds workableYes the reflective oven is highly inefficient croma a fuel point of view , but is this inefficiency that gives the soft ,slow cooking pattern .
Plus it is very light and foldable , that doesn't hurt when overlanding .
I think it is rally usable only in Africa , and americas , with at least 30-50 mi. Of high flames available , so plenty of wood .
I will investigate into it .
My best shot will be to combine a reflective oven and a grill in 1 piece .