I concur in that this is the most difficult patch panels I dealt with in my 50. (Of the standards, cab corners, inner, outer cowls) I didn't think that the indents were going to line up, but a spent a lot of time and tweaking, (the floor bend would be easier if the stamper didn't do anything instead of the bend they attempt) and they did eventually line up. You have to key to them and not the edges.
Steve O