There's probably a simple answer to this, but i can't seem to see it.
I notice that when Audio TX and Audio RX are set the same, the TX and RX indicators on the waterfall never line up when in Q65 mode. (See attached image) I set F Tol to 100 to exaggerate the difference. This was using 30 second T/R, Submode A
Out of curiosity, why does this happen? (I've browsed the Q65 Quick start guide and the WSJT-X user guide and can't seem to find out why).
