wrote:
Anyone have suggestions or caveats about doing it?

Myles Bradley

I would contact Dale Kramer from Canada. He has done the same thing
(using computer spreadsheet number crunching) for "Pilot Performance".
I bet if you contact him, you wouldn't have to waste a lot of time
re-inventing the wheel (oops, I meant the measurement criteria, and
number crunching)
Micki