I'll try. Before I glue the boxes together, I was routing a quarter in slot about 3/4 of an inch down from the top halfway through the thickness, this was on the inside. Once glued together, obviously you can't see it. Then when the glue is dry, and after the ribbon was inlaid, I rout a 1/4 inch slot on the outside, just slightly above the bottom of the hidden slot. If you get it right, the top will just drop down onto the bottom. The problem is, you're routing pretty much blind and most of the time, the top ends up sloppy. The new method will have inserts glued in after the top is cut off. Also the ribbons on the sides didn't match up if the top was turned. I built a dado sled that I think will eliminate that issue. Here's one, not finished yet, but shows the insert. My opinion, it actually looks better.