Like a few here, I found the Ryet Ultimate with the 3D cushion (and carbon shell) was wearing out my shorts, particularly on wet/dirty rides. I also found it a little too grippy, so I couldn't easily shift my weight in the saddle while seated. I moved to an EVA cushion with a plastic shell as EVA cushion with a carbon shell was too hard, and I may well stick with this option.

That said, I noticed https://www.aliexpress.com/item/1005008248178090.html has a Ryet Ultimate with a 3D cushion and a cover over most of the lattice. Does that fix the short wear issue? (Also curious how the vacuum foam differs from the EVA too.)