Figured I'd share my experience with ZMF pads as well. Currently running the Ori pads that came stock with my Atticus and I am really enjoying the combination. Pads fit perfectly, no need to cut the leather.
Bass is much more emphasized and impactful. Sub-bass now gives a nice rumble that I felt was lacking in these cans. I removed the 1.1 port baffles to increase the bass response with the stock pads, but even with the ZMF pads and their bass increase the bass is very enjoyable without being overbearing (Added more info to this below). Still very clean, quick, and does not bleed into the other frequencies.
Treble has become a tad darker but IMO a welcome change. My Jot + Mimby is a fairly bright setup so anything I can do to tone down the treble is a plus. For reference, I was running the white felt filters with the stock Ether pads and am running both the black foam and black felt with the ZMF pads.
Mids for the most part stayed the same, if anything sounds slightly recessed now due to the bass increase. I'm sure throwing the baffles back on would even out the response again.
Soundstage is definitely more expanded, but I think the biggest change was the separation of instruments. Before I felt like all the instruments were on the same level and I had to really focus on a specific one to really appreciate it, now there is much better layering and can really enjoy the music rather than dissecting it.
Overall a great setup if you're looking for neutrality with a touch of warmth. Have been trying to find something as close to Andromeda's signature and I really think these nail it.
ZMF pads:
Stock pads (older, softer pads I believe):
Filters in the ZMF pads. Just barely covers the whole opening.
Currently have a pair of the new Ether pads coming in the mail so we'll see how they compare, but really enjoying the ZMF pads on these right now.
Edit: Would like to add that the dip between bass and midrange sounds more prominent with the ZMF pads and no baffles. Seems like the pads are increasing the frequencies before the dip. Just an FYI if you plan on running without the baffles.
Edit 2: Running the new Ether pads and it's actually perfect. Fixed everything I thought was wrong when I first received them. For clarification I never listened to these without the 1.1 tuning kit so I don't really have a reference for what they originally sounded like. But using these new pads, the port baffles, and the white felt really showed me what these headphones are capable of. Bass is tight and punchy with rich mids. Detail retrieval is much better with the new pads too, I felt like I lost a lot of it when I was using the old pads with the white felt. Soundstage is expanded and instruments are nicely layered. Honestly are a must have purchase with the 1.1 tuning kit. The ZMF pads provided a very fun sound, but these new Ether pads just make sense. So much so that it puts the Ether's at the top of my list.