Thanks for the quick reply!
It was the best way to get to Berlin to see an old friend and make it to MAN on *A.
I hope you're right about the access. Does anyone know if the LH site changed *1 on the lounge access page or has it always been confusing?
The main line states 'First Class boarding pass for an arriving/departing LH/LX flight on the same day' but the asterisk only mentions departing flight for FCT:
(1) Access to the First Class Terminal at Frankfurt Airport is only possible with a confirmed same-day departing First Class flight on Lufthansa or SWISS. HON Circle Members may access the First Class Terminal with a same-day departing flight on Lufthansa, SWISS or Austrian Airlines. Access to the First Class Terminal is not permitted for arriving passengers.