Ok the top set of magnets are not on the balance?

It all depends on the force law, if you model a magnet as 2 magnetic monopoles tied together they will experience an inverse square force.

If this is the case the repulsion from 2 magnets close together is much larger than when they are further apart. So you will get (at least) 4 terms in the force.

1Tv1T 1Tv2T 2Tv1T and 2Tv2T

we can multiply out the 2's

1(TvT) 2(TvT) 2(TvT) and 4(TvT)

where TvT is the repulsion of 2 1T magnets.

or

1,2,2, and 4 (TvT)

If the magnets are set diagonally the repulsion will be less than when they are opposite one another - call this a factor d which will be less than 1.

so we can have the first case where like magnets are opposite one another

(1 + 2d +2d + 4) TvT = 5+4d

or th other case:

(1d+ 2 + 2 + 4d )TvT = 5d+4

as d is less than one, putting them opposite one anther will produce more repulsion.