Hey Steve,

I was stupid enough to take the lead in trying to manage the process of getting the Legacy CAI workaround through the OLC folks back in 2012. I've been roped into a couple of problems here and there over the last 5 years, but by-and-large the process seems to work for "most people most of the time". One thing that seems to crop up occasionally is Pilot Event Markers (PEVs) screwing things up. I've done some analysis, and I can't identify the root cause, but there seems to be a high correlation. So, check to see if your files have any PEVs; that could be a problem. Why there would be a PEV if you are just using the Model 20 as a passive logger (i.e. not connected to the 303 display) is a question in and of itself...

Erik Mann (P3)