Fair points. Let me try to counter them:
1. It's possible that the packets remained in the bag until very shortly after arriving at Tena Bar. Between the bag deteriorating, the flooding, etc., I don't think it impossible. Also, the packets were not buried deeply in the sand. Ingram said he merely swept his over over the sand for the firepit.
2. Hayden and Tomahawk are actually right beneath the FBI flight path which takes the planes virtually over the I-5 bridge. Also, I am assuming a no pull which would result in no drift - only forward throw from when he jumped.
3. The west side of Hayden is no populated and undeveloped. Marine Park would also be virtually empty in the winter. The corpse could have landed in brush or undergrowth, been covered in snow, or both. My point is that were not talking downtown Portland.
4. It's possible the drifting could have occurred at night. Given the average current speed of that part of the Columbia, it would have taken between 12 and 18 hours for it to drift to Tena Bar. Flooding would have made the current even faster. Assuming the bag had opened to free the three bundles, that means that the rest of the money would have become free and ended up on the bottom of the river along with the body.
5. The timing of the jump has always been a bit of a question mark. The best we can tell is that it happened somewhere between 8:10 and 8:15. Also, as you yourself have pointed out, the speed of the flight seems to fluctuate. Thus, the flight could have been farther along the flight path than thought.
6. This I have no answer for, just guesses. I would like to know how thoroughly the FBI searched missing persons. Then you take a guy like Dick Lepsy who never would have been accounted for. There could be explanations for this.
I appreciate your thoughts, Eric. I'd like to hear more give and take on this from you and others.