I own MDR V6, M50X and just bought QC35. When I did the comparison between M50X and QC35, I felt that M50X has so much more clarity in the high end, which I like a lot. Considering that QC35 is much more expensive, I wanted to make sure that it’s not quality issue of the item, so I searched and found your article. Glad to see that you have a precise summary of the three models, almost exactly how I feel about them. Great article, very helpful!