I have the enduracne plus set up tubeless on my touring bike (HED Belgium + rims). Setup was completely uneventful. I think the sidewalls are less porous than their extra-light. I also found the Panaracer sealant isn't necessarily the best. Fortunately it is completely compatible with orange seal. The main problem is the walnut shell fragments are so big that you have to pour the stuff directly into a partially unmounted tire. Otherwise it won't make it though the syringe or valve stem.
In retrospect, the 55mm tires are possibly too big for my touring bike with 700C rims -- toe overlap is now an issue.