"you'll save an incredible amount of time if you just curve around one axis for the entire panel/section."

I get it. The simpler the shape the simpler and less time/money consuming potential is built in right there. But let me also set up the prerequisites here to help illustrate the my reasons for doing it my way. Take another look at my flat wrap animation and you'll see something. There are two styles there whose halves are joined as one hull, a conic style and an angular flat panel done for comparison purposes. What I'm attempting to achieve is to shape the conic version so that it hits the same "corners" as the flat angular version then proceeds to go past those corner points and curves back around providing extra sitting volume around the back of the head and also provide what was referred to long ago as hatboard space. Ditto on the other end, a ledge for books or additional wardrobe space. These ledge spaces are as deep as the beams width (around 2') and rake back towards the  the conic's frustrum at about a 45 degree angle front to back and a much more accute angle from the hull's weather side. The fore and aft conic sections are blended into a third central conic surface between them. Those are the only conics on the hull, the others are ruled surfaces. Maybe I'm wrong to assume, but you've alluded your dislike for discontinuity in surfaces that you feel takes too much work to fair. Fair enough. My roofline does have a shallow slope to weather because of a ruled surface wedge sloping up towards the lee side of the cabin. For me to try and fair that because I felt "not right", well, it just doesn't bother me and so I'll simply let it be. It was never  meant to be blended to the major conic surface. If the sunlight exposes the blend between the minor ellipse and major ellipse of the two conics surfaces then I simply wasn't a perfectionist enough to fair the transition. What would bother me is if I loose the frustrum below the roofline's wedge because it also serves as a level baseline when the cabin is turn upside-down (in two sections) to build a form in some fashion to lay foam down. Anyway, I did what I did for a reason and it was to hit those corners and provide "hatboard" spaces over the beams in an effort to stay away from an upside down rectangular bathtub sort of look. 

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