Hi all,
We did not use Ocean Pilot Charts all that much for fundamental guidance, but they did get referred to before any ocean passage and were fun to have aboard for the occasional answering of questions that inevitably come up among sailors sharing a beer. And there is a wealth of data in those charts in addition to expected wind speeds/directions on a monthly chart.
Jimmy Cornell has done his own and they can be found at: Paradise Cay Publishing in the revised and updated edition of the "Cornell’s Ocean Atlas, Pilot Charts for all Oceans of the World". That, and his updated “Routes” book deserve a place on any widely wandering boat.
My best, Dick Stevenson, s/v Alchemy