as the effective theory valid up to the cut-off $\Lambda = M_{Pl}$ where gravitational interactions decouple. Starting with real and universal boundary conditions at $M_{Pl}$, we solve the RGE displayed in Appendix A by expanding in the small parameters defined by the right-handed neutrino thresholds t\_3=       t\_2=        t\_1=     ,\[thresholds\] with the ordering $M_3 > M_2 >M_1$. We thus obtain approximate analytic expressions for the radiatively induced $\delta$’s and ${\cal I}m(A_{ii})$ which depend on $m_0$, $a_0$ and the Yukawa couplings defined in the LF basis at the scale $\Lambda$. Of course the latter can be immediately translated into the corresponding ones defined at any scale, $M_1$ or $m_{susy}$.

Precisely because of the lepton flavour and CP violating Yukawa couplings, the LF basis is continuously rotated and rephased with the RGE evolution and, as already discussed, we handle this by working in a rotating basis. It turns out that the basis transformation introduces negligible corrections in the FC terms (\[FC\]) but important ones in the FV terms (\[FV\]). Notice also that the seesaw effects stop at the decoupling threshold of the lightest right-handed neutrino, $M_1$, and that the RGE evolution of these effects down to the supersymmetric scales where CP and lepton 