GT-6 rear suspension radius arm attachment

[Aribert_Neumann%MIMCO@magna.on.ca]

On my 71 GT-6, the radius arm attaches to the body with a bracket that has
two sets of mounting holes.  THe radius arm is attached to the lower set of
holes in the bracket.  What effect will the handling have if the radius arm
is attached to the upper mounting hole?  Was this bracket used on other
Triumph vehicles - consequently dual attachment holes or is there a
handling gain available?