Pinetar, don't apologize. The referred to post was poorly timed, and obviously you've spent a lot of time and money trying to get a handle on the erosion issue.
The thing to remember is that there will be erosion, but you've made a great attempt at controlling it.
I had an erosion problem on the back of my dam last year, and did this.
I knew I couldn't get Bermuda started quick enough to stop the erosion, so I bought 3 pallets of Bermuda after I identified the problem areas, refilled and repacked the eroded areas, and then watered daily.
The Bermuda sod disrupted the water flow and stopped the erosion quickly. Maybe something like this would be advisable if you have a few isolated problem areas. Far cheaper than a full sodding, only put out where needed, and immediate results.
