the circulating current from labrador might have an effect, being cold it might run at sea floor level as it starts near greenland and joins the warmer water flowing up the east coast from the equator, just a thought.
Was watching the indianapolis program on channel 84, and how they found it, looks like the US navies official position appeared to be at least 50-100 miles out, it appears that the straits current at sea floor level was stagnant or very low flow as the ship is well preserved.
