  The cross section for the reaction $^{39}\vec{{\rm K}}(e,e'p)^{38}$Ar is
computed, and the dependence of the FSI on the initial polarization angles of
the nucleus $^{39}$K is analyzed. The results are explained in a semi-classical
picture of the reaction. This procedure allows us to find the best initial
kinematical conditions for minimizing the FSI.
