Originally Posted by wgscott

I like their tires and I have a serious phone phobia, so I guess their customer service model (email) suits me fine.

I've only set up one set of tires tubeless. They are the new 55mm treaded 700C tires (Fleecer Ridge Endurance Plus), and I used their recommended sealant, produced by Panaracer. The tires were a bit of a PITA to mount, but once they did, they have been fine.

I was put off trying any of their other older tires tubeless because the idea of sealant weeping through the sidewalls and coming off rims makes it sound like they weren't originally designed to be tubeless, and they have been labeled tubeless-compatible. Maybe I am being paranoid, but I would rather just stick tubes in them and not deal with the hassle (and set up with tubes, they have been great). I had one tire that developed a split in the sidewall, and they sent me a new tire and asked for the wounded one to examine. It may well have been my fault, but their customer service has been more than I could ask for (and I didn't have to listen to highly-compressed Muzak while I am put on phone hold).