This is an interesting point that I want to clear up as well. I was trying to figure out in my head too. Basically, they are both thick but in different way.
The 2C has a thicker, but denser sound images, like clouds. The Verum may be less thick, but it is more focused. Thats why I feel the Verum is thicker than the 2C. There is more body to the Verum.
@betula do you remember I once said the 2C felt thin? I realize later the reason I felt so compared to the old Audeze is due to this dense sound images, despite being large. The old Audeze felt thick and full-bodied. The most out of any headphone I tried. Some people may think it is way too much, but I enjoyed it a lot.