Re my: "They are certainly suggesting they expect the bottom leg...

Re my: "They are certainly suggesting they expect the bottom leg is in the water, I think? Or God forbid, a conspiracy to hide the truth perhaps?"
Too much conflicting information. I give up, the more I think about it the harder it gets "

One last effort and I think I've nailed it - the great double blocky sand conspiracy theory and how not to show them on the artistic N-S seismic:



Tongue in cheek of course ...... or could there be just a wee bit of truth perhaps in that this is where the double blocky sands lie? And why do Cairn white a lot of that area out on their maps all the time?

pj