I ordered a MK for the 12.9 that should arrive in a week or two in addition to a cheap magnetic Apple folio case knock off from Amazon (was under $20 and works great). Also have a TomToc carrying case for the 12.9. Thought is I’ll keep the iPad in the MK (will give it additional structural reinforcement to help prevent any bending issues) and also keep the folio case in the kit as well (which should barely add any bulk or weight). When I go from MK to tablet mode, its a simple process with both cases being magnetic... keeping the iPad protected at all times. I’ll try out keeping the empty folio case under the MK for quick access when using the iPad for productivity work on a desk.