Personally, I'm better with C-Flex off. Something I couldn't do until I found a manual for my machine....annoys me that a comfort feature has to be prescribed and controlled from the clinician menu (when its on, the user can change the level 1-3.. but can't turn it off...)
Can the PRS1 tell the difference between OA's and CA's? Thought that would require it to at least be an auto?
I know with my M-Series CPAP...EncoreViewer would show a CA's line on the graph, but never anything it it....EncorePro wouldn't show the line, because it wasn't applicable to my machine. Was told that Viewer is generic, it shows everything whether it applies to the machine or not. Which appears to be true, when I later put in a friends card from a Plus.
You may be a dreamer, but I'm The Dreamer, the definite article you might say!