So, all of the known drownings, or missing persons have all been found resulting from the Columbia? and it's "astronomical" for a skydiver to drown, especially at night?
Can you tell us how pieces of money were found at different depths, does this suggest a plant?
I'm not stating anything as fact, it's a possibility to look at, or put into consideration.
What part of Gunthers book can be verified, published in 1986?
I realize you have everything figured out, but the problem is that they admit it's possible they looked in the wrong place from the very start, and it's not that odd that a body goes missing in any given area. I have never stated anything as fact. I'm not alone with this "possibility" Cooper died that night, it's very possible, as well with his survival. after all the years of researching this case I still can't come to any conclusion of this.
I wasn't sure about the possibility of a plant until I seen the 1980 video showing pieces found at different depths. this suggest, or proves a plant is out of the question, or as you state makes it "astronomical" it doesn't make sense after seeing it as it happened.