Let us know how the sashing goes once you join them. I'm curious to hear if you found it fairly easy and if it was worth it. For those who like to free-motion it sure would be nice to work on blocks instead of wrestling the whole quilt. I still like the idea of adding batting in stages but haven't tried it yet. I need to do a large quilt to try that. If I make a bed-size quilt I'll give it a whirl.