Apologies if I've missed the gist of your posts and started word picking, its tempting to start picking holes with wording when you're dealing with technical subjects.
But I did take issue with Post #6 where you mentioned the span not effectively being increased and an increase in aspect ratio harming the performance of the wing and increasing drag. In fact the reality is quite the opposite! The description that followed regarding the effect of the canted surface and it capturing lift I also felt was wrong..not least because you get get the same effect of a winglet without canting it and instead extending the wing and raking the wingtip.
Maybe I am not reading your description in the right way. This is an open forum and I'm sure others will correct if I'm wrong. I do agree our conclusions are much the same and any where else I probably wouldn't have taken issue, but this being Tech Log I thought I would make an attempt at a technical answer if possible!