Sounds daunting Glen! ( but oddly intruiging )

I remember that it was the antipode and not the FFA that saw the brunt of the M9.2 Indonesia event (which occurred during a syzygy window). To me, the idea of 23,000 hiroshima bombs going off with nary a whimper for FFA, almost closed the door on FFA for me. However, I noticed there were times when it was trackable or an amazing coincidence. Hence the idea of windows opposite the syzygy windows. Maybe tidal forces have a dampening effect on FFA.

Just a hypothesis!