OK wow, just had a look through of our discussion thread and videos on this topic and I am thoroughly impressed. As someone who can’t even glide let alone coast any distance, I wouldn’t be the best test subject for this but I’d sure be happy to see someone give it a go.
It would be quite trivial for me to revive the old 3-speed S3X project and replace the S3X hub with like a Shimano alphine 11 or similar. Then you’d have a fairly lightweight freewheeling unicycle with a pretty crazy 400% overall gear range. And since backlash isn’t a concern at all, we could use much smaller diameter sprockets going up and down to the transmission hub which would keep the look clean too.
If you can pull this off and ride long duration with confidence on a freewheeling unicycle then I dare say you could be up for a huge advantage at any of the distance events at the next Unicon!