Andrei, thanks for the video. I think I tried this approach earlier on, but I wasn't getting good results. The difference was that I was trimming away a larger portion of the surface before blending. The trim I made was a segment all the way through the back of this solid. When I blended, I got some lumpiness on the back where the flat plane blended with the top. Your trim yielded a better blend, although I wasn't able to join the resulting surfaces into a solid. I made an adjusted trim line and blended that, and I was finally able to get a solid in about 30 seconds of work. This piece has been a headache, but I've learned a lot!