Also check the grids north/south and just east/west of Grid BE 68.
And too, Grids GC 84 thru 89. I just saw 2 convoys Sept 30, '43 on my return out of Cassablanca, where I scored 12 ships sitting anchored in the harbor. One was east bound the other west bound in in CG 88. Too bad I was out of torpedos.
