Ed, Sorry we didn't get a chance to work, but I'm sure we will in the days to come. I intend to put this mode through it's paces so I'll be on in the evenings for a while.
So far, the mode seems to perform better on-air than during the path simulation tests. It's quite robust and has a pretty good balance between bw, sensitivity and throughput. It has a lot of potential as an ARQ chat mode. The semi-duplex - ARQ operation is certainly something all digi-ops should try. Thanks for all Patrick! Tony -K2MO