Thanks for the compliments/feedback. The padded bivy has worked well for me on several trips. I used a slightly heavier/bulkier version on the BMT than the lighter version in this video.
The poncho/quilt is for summer only. I've been comfortable in the mid to upper 40s F. This is with a spash/wind bivy for extra heat retention. So, not a very warm set up.
The upside-down pack design has served me very well for the last few years. The idea is simple: with a super light load, the heaviest stuff will often be the food, which also is what you want quick access to. You also want that stuff off your back and carried closer to the hip belt for better load transfer and reduce bounce when running. So why not make the pack upside-down?
About sledding down Max Patch: look out for the briars!
About the unicycling: cool stuff.