Changing coding rate to 1/2 w/ .65 @ 125 Hz showed better LQ for me. This is a bit aggressive with 1.7 ms overheard. So nicer options would be 111 Hz or 100 Hz.
Another option would be to use 1.04 w/ 1/2 coding rate, this would allow for 167 Hz and be more tolerant of frequency error. Downside here is that there would probably have to be some considerations for frequency range and possibly channel spacing.
title says it. Todos: