On the contesting its easy for me to see based on my user experience why the Flex with PowerSDR can not truly be a consistent contest winner given the window focus issues. This has also been lamented on by others here and elsewhere.
CW is based off the feedback from long time trusted Hams who have been Flex users. I have no CW user expereince myself to pull from.
Fair is fair, I amswered your questions, why did you ask this question to me? Are you successfuly contesting with a Flex 5K or doing CW without issues?
Sorry for the tardy reply, I have been away for a few days.
To answer your question, I have never owned a Flex product but I have followed their product lines and the chatter about them and I may pick one up in the future. I was trying to understand your ratings given there appeared to be no empirical data behind it.