A common strategy for computing interstate properties within EOM-CC is to take a geometric average of individual matrix elements . Numerical examples illustrate that, as expected, the phases of A → B and B → A matrix elements are not exactly conjugated. This leads to an ambiguity in geometric averaging: one can either average absolute values of the matrix elements and assign phases in some way, or average the Cartesian components of the matrix. We observe that in the absence of point group symmetry geometric averaging of the absolute values violates the rotational invariance of SOCC. In contrast, the arithmetic average satisfies the requirements above while producing the same value regardless of whether the spherical or Cartesian components were averaged.