Any Mitchell can have extra sets of boards inserted in the movement by placing them on bye stand tables at the correct positions.
The advantages of these are they lengthen the game without changing the basic movement and with an even number of tables they eliminate the share or the skip, and yet all E-W meet all N-S.
The disadvantage is that the E-W pairs meet some N-S pairs twice and in some cases three times.
There are three different cases:
