When re-finishing my ceiling (formerly popcorn, now smooth) I had some trouble with the edge of the tray ceiling in the master bedroom. Since the length of the tray was longer than a standard metal outside corner bead, the builder spliced several together by overlapping a few inches.
For future reference, is that the correct method for splicing? It was really hard to get a smooth coat of mud over it, since it was a sharp irregularity on the corner. (I never did get it perfect.) If the corner beads were butted instead of overlapped, I don't think I would have run into this problem. Would butting the corner beads cause cracking at their joint? What are some other factors that I haven't thought of?