Kurt,
In fairness to Al, when I was purchasing the Silverton I asked the folks on LI for surveyor recommendations. I also contacted Al. I norrowed my choices down to Al or another surveyor who also came highly recommended. Al is not located on LI but the other recommended surveyor was local to the area so I went with the local guy.
Now, back to the blown tranny, the surveyor did run it under load and did all that would be expected but no fluid analysis. The authorized repair facility and the insurance compant surveyor both agreed that the tranny failure was the result of "impact". So, let's leave that incident out of this discussion,