That's this one.
I graded the Fin sitter for the harder method, I wasn't aware of the easier way at the time.
(how does this right foot work then lovejoy?)
stepping RF onto the smear Sam is on in pic, then keeping the flagged LF on right side of arete to curtail the barndoor for subsequent moves.
or possibly finish on the left hand side (seems like Sam W is going this in Peak Bouldering).