I'm sure others have used the domino this way. My customer needed 4 shutters repaired/replaced. I couldn't commercially find a good match, so I built them myself instead of replacing everything on the house. The domino worked well to cut the mortises for the slats quickly. It took me longer to lay it out than cut. My layout lines are about 1/8" in at 66 degrees to center on the 1" stock, referencing off the bottom of the machine. I used a #6 on the wide setting on my DF500 to match and re-use the good slats. I only needed 10 new slats for all 4 shutter so I put them in the same shutter.