Conch extended?

My good friend Francis Ow commented on the apparent right-angled corner in the top left of the first photo (see the previous post). This is the original centre of the paper, as shown below. There are ways this corner can be “dealt with”, but they push it past the level at which most people could fold it. This is a moral question – do we strive for accuracy, aesthetics, simplicity? I’m simply not sure! However, I took it a stage further and the corner can be “lost” at the expense of many folders who would find the sink almost impossible to do. Both versions have their merits, which do you prefer? I hope to teach this at a mini-meeting later today – I’ll see what the feedback is.