I missed this thread first time around. A buddy on the NL West Coast has had great success with Fatty Stripper. Personally, I would rather run tubes. I’m not fond of the idea of getting all messy with goop if fixing a flat on the trail.
And I’m not really sure how layering a piece of rubber (similar to a split tube) is any huge weight savings over using a tube. If anyone tries it again, can you weigh the Fattie Stripper strip and post back??
However, I have swapped out the mega heavy duty fatbike tubes that come stock with 26 mtb tubes. Saves a bit of weight. That being said, I just may try the tubeless thing some day.