I had a quad dominate surface mesh that CCX failed to expand. It took 40mins before it got to that point in the solve. I’m wondering if it would be possible to have the shell expansion as a separate process that also gave some mesh metrics like element shape quality. This way the mesh could be created ahead of time and reused. Right now CCX recreates the same mesh over and over when doing additional solves. Having the expansion be first would make the process like a traditional solve. Hope that makes sense.