John,
Its not much, but I was able to speak to one of their pilots via email and did get some info. He flew Cobras in Vietnam too, and told me a bit about the similarity of operations.
Right now, I'm finishing Chapters 6&7. After that, the only thing I have left is Chapter 4.
Should be finished and off to Osprey within two days or so.
Glad you liked the Cobras book. I had a blast writing it and met some of the best people ever!