Tim, I finished my first table/cabinet a few months ago, so I'm no expert, but this is what I found on mines so far. I have not locked the table down, but I did find I had to add one little flat head screw to my insert. My table is hinged too, like yours, and I found when I went to lock in a bit, in the collet, I would sometimes force my insert out of it's place. Since adding that one screw, on the side nearest the operator, or the side that is the highest when the table is up to change bits, I haven't had that problem again. But your insert might fit tighter then mines did. Mines did feel tight, until I mounted the router on it.