Great that you finally got the edit. :)

The sister subplot has been cut and put back into this edit so many times over the last couple of years. Like you I don't really care for it, and would like to cut it for good. For me it's more to do with focusing the conflict on Luke/Vader, which this whole edit is basically about, although the contrivance of Leia being his sister feels a step too far.

The problem I always found was, if Vader doesn't mention Leia why does Luke suddenly attack? Ator, a couple of pages back, solved this problem, but I haven't got round to editing it yet. It'll mean reediting the entire battle of Endor... not a particularly appealing thought.

I also don't love the fact it'll make the edit three or four minutes shorter, and I wanted to get it up to two hours, not cut back to 1h45m.