Sounds interesting to me, I do PSK and RTTY, but have tried other modes. And though one of the county hunters has helped me over the phone make contacts with him at home using MSFK16 and THROB, those were the only contacts that I made using those two modes. I've never been able to "decode" any other signals on the bands even when the call and frequency are posted on the cluster. This would be of interest to me as County Hunters have a 5 mode award so beside SSB, CW, RTTY, and PSK you need to be proficient in at least one other digital mode. The other ones, Pactor, Amtor, MT63 and Hell I've never got close to seeing anything, (if they are at all used).
CH/CM Castle Craig Chapter of 10-10