I have a 6300 and a 6500 and have had the above receive audio sampling problem for the last 4 years on both radios and all versions of software up to 2.49. I am a cw contester and normally run and receive at 28wpm to 40wpm. At these speeds the slightest audio glitch is very apparent and normally the human brain can work through these audio glitches to guess what was sent. I find myself turning AGC-T back to a sub-optimal level (cannot hear weak callers) reduces the problem. My question is why are they there and what can be done to get rid of them? Instead of dreaming up new features, could Flex improve this problem?