After more time with the Cascade, I'm definitely hearing the benefit of a couple additions. XL Pads, burn-in, an aftermarket hybrid cable and a bit of EQ adjustment has brought these to life for me.
I'm still waiting on a headband cushion to arrive (From Sennheiser 580, supposedly will work with the Cascade) to improve the comfort, as I find that they don't quite sit that well. I have a bit of a narrower head, and find that they actually sit too low on ear for me even though I have them in the stock position, without any extension.
Definitely get the hotspot at the top.. I can run with them for mayyybe 30 minutes before I feel it, 45 minutes before I have to adjust as its getting annoying. If I had to find a glaring weakness from this headphone, this would be it. Well, that and maybe that they don't provide the XL pads by default.. just feels like for the price they really should be included.
Soundwise, the burn-in is no joke. I have been listening to them nightly for the past few weeks (plenty of time to listen these days right?) and feel like each day they come more and more out of their shell, which is hard to explain as far as an experience, but is definitely not placebo. More soundstage, better mids, smoother highs and just an overall better sense of balance (this with the stock filter config - no filters, only white stickers). XL pads definitely do their part to expand on the soundstage, though they don't tell the whole story here. Comfort wise they add about as much as the sound over the stock pads. Not huge, but noticeable enough.
The aftermarket cable has helped to smooth out the highs in some scenarios and and add another (albeit smaller) level of depth, clarity and imaging to the sound. Lastly (I say lastly, but using no filters, this was actually the first adjustment I made) I shifted EQ to add 1db between around 500-2k and dropped 1db around 7.5k. When I A/B this curve on and off I find it really helps to balance out the sound for all tracks and is a good daily driver setting for me (for the type of music I listen to.. electronic, bassy).
Overall these are absolutely hitting the mark for my needs over the ZMF Atticus, though on some tracks the Atticus still beats them out in sheer gooyness in the mids, comfort and just smoothness overall. Very tough comparison and I won't begin to try to make it, but I do find myself reaching for the Cascade more these days. Not sure how much farther up I could go from here, but not really thinking about that for now and just enjoying what I'm hearing.