Richie, I have always given you and Jeff V. Hayden credit for your early observations, although, honestly, it was John Balderston's analyses that really got me looking carefully at the 2010 (substandard) video. I was amazed when I later investigated the thread that first called the "squigglie" to our attention. I was even more amazed when the suggestion of its relevance was summarily dismissed and pooh-poohed.
Your discovery of the anomaly in shallower water is no less important, and I think not in any way mutually exclusive with whatever I have pointed out. They are, literally, only yards apart, and both in an area consistent with an aircraft sliding off the slope near the "alleged" Bevington Object.
In the end, as I have always maintained, it is Ric who deserves the ultimate credit for figuring out the final landing location of NR16020. All the "smoking guns" in the world won't change that, one way or another.