Hello Michael and PK,
maybe Google translator can help:
The first problem is a building defect by Billy. The seats in the picture must be about 45 ° rotated to the right so that the openings of outer shell and aft compartment coincide.
Secondly, has nothing to do with the thickness, but with the mirroring. Left is right and not left (only the inside!), when using the mirrored sheets ....
Maybe this is now better understandable.
