Literally cannot feel them on the top of my head. Pressure is only felt at the side which is very little. However, the earpads have this vacuum effect, which usually goes away. I had the same experience with LCD-3 in the past when they came fresh, whereas the LCD-2 were rigid in the past. Very comfortable. Audeze knocked it out of the park. You can nod with these and they won't come off and you shouldn't feel stress.
I got to listen for the first 2 minutes and then got hijacked for the first hour by family members. They loved the sound and comfort. I think there was a slight change in sound when I first put them on from the cold and an hour later after they were warmed up by my family.
It's a 10/10 already. Deep bass extension and slams exactly how I would expect it to in my head. It keeps up with my memory and exceeds what I experienced with the LCD-2 and LCD-3 back in the day on BHA-1 and BDA-2/NAD M51.
They are resolving as well. They are eating up all the grainless sound coming from the BDP-1 as a source vs. iMac. HD 800 would do it as well, but it's good to see similar results on the LCD-2C as well.
Soundstage is spherical like usual. Good height like I remembered. Zero fatigue, sibilance, harshness, or peaks that I can notice. Nothing irrating about the sound, which was the biggest concern in general about 95% of the headphones out there. You can read my signature for the details.
The mids are slightly warm and creamy, but without overshadowing anything. Layering is excellent as well in depth. I am not missing the HD 800 (with or without Sonarworks) at all, even from resolution standpoint.
For the guy asking, YES, female vocals kick ass on this.
If you are nostalgic about the old LCD-2, go buy them immediately. I'm very, very surprised at how well my rig is pairing with this considering I've used my LCD-3 with 10-15k+ rigs.
I'm working on the pictures.