Yes please post some pics on the second wing but you are right in that all the ribs must be parallel to the building board at all times. So if you draw a center line on the rib from le to te and check against the board just make sure it is parallel. That is what the jig does for you and why it is tapered from root to tip. If the wing tube does not fit into the holes then you have one of the ribs upside down. They are marked and the tube should also be parallel to the building board (i.e the top of the wing).