Hi Mitch,
Thank for your response. You make some good points. The reason I have been focused on PSK and other modes for HF is mostly because of the negative reports I have read about the reliability of HF packet. Some of the APRS folks go on and on about "retries from hell". But now that the latest software has multiple decoders available, it may worth giving 300 baud AFSK another look. (I try to avoid using the word "packet" when talking about D-RATS.) When I get my HF station going again, I'll send out an invitation to try D-RATS on HF again.
Thanks de,
Patrick (N3TSZ)