I enjoyed watching this review. I own a Shangri-La Jr, though not with its own amp, but with a modded Stax amp. I agree with most of your impressions on the Jr. I personally think the Jr is a bit bass light, though with decent punchiness, but that may be due to the amp I'm using. I listen to a lot of EDM with female vocalists, and the Jr does that very well in my opinion. It does make the vocals have a bit of a thinner and breathy sound, but I generally like that effect. The treble is one of the smoothest I've heard while also being well-elevated and extended. It's a nice, open, and airy sound that I loved from the first time I heard it. I also agreed with your take on the CRBN; I thought its midrange was a bit too shouty, and the bass, while it had more heft and punch, was a bit too punchy for my tastes. For the aspects of sound that I value, the SGL Jr was my preferred option, though the CRBN is a good headphone regardless. Edit: One more thing is that my SGL Jr does not have that cable twisting that yours has. The cables between the split and the earcups are flat and smooth, so it seems that what you experienced is some sort of either wear (possible if its a demo unit) or a manufacturing defect.
Fantastic, loved hearing it works with EDM. Your observation that Susvara scales more with higher end gear seems to be the consensus amongst reviewers. Looking forward to more.
How does the HE1000se compare to these headphones? As much as I love certain aspects of it, it already sounds considerably leaner to e.g. the Focal Utopia ; I'm not sure if i'd want my headphones any leaner than that. And it appears that all of the headphones in this review offer this type of sounds. Except the Susvara perhaps? Although I'd imagine the HEKse's bass will be more present.