Maybe a nice addition to the FAQ would be some modem specs.
I may have missed it, but could yet find a clear answer in the code what the exact settings are.

What baudrate do you use? (From the frame description I would guess atleast 20k2, but probably higher.
What symbolrate do you use?
Related: what modulation scheme are you using exactly? GMSK? QPSK?

Payload is more than 64 bytes - it’s a bug in the WDS3 software. It’s 93 bytes right now.