I'm about to start a 800 fp down topquilt and I've about decided on a karo step design. Does anyone know of any cons of this design? It looks like mostly pros to me over a baffled tube design.
Also does anyone have any experience with Dutch's argon 67 in relation to the RSBTR membrane 10? Both weigh almost exactly the same per yard and are within 5 cents of each other on price?