I picked up some 23s. I haven't converted yet but will. If they are nice, I'll get more. I wanted to try them for one reason and it may or may not make sense. We have a few long and fast descents with some serious potential of bad injury or death if you go off the side of these twisty mountain roads. I always feel that a tubeless setup will lose tire pressure slower like on a MTB tire. However a pierced or compromised tube can deflate in a few short seconds, leaving me with less time to slow down. I have used tubeless for years on my mtn bikes and am hoping that extra safety margin applies here too.