Match between  staves and bi-stave supports
Method: visual inspection of the screw holes with the supports in contact with the stave
               The results refer to support of the layers 1 and 2
L = holes aligned but screw shank in contact with the stave 
Stave Side R Side L
4034 ok no
4035 L ok
  4036 ok ok
4037 no ok
4038 no ok
4039 L ok
4040 L ok
4041 ok ok
4042 no ok
4043 ok no
4044 ok no
4045 no ok
4046 ok L
4047 ok ok
4048 ok ok
4049 ok ok
4050 ok no  
4051 ok ok
4052 ok L
4053 ok ok