So I've been running them tubeless for a couple of weeks. The rear sealed up right away with 2 cups of stans but the front was a little more stubborn and needed a third after losing air overnight a few times.
Seems to be holding air no worries now.
Yeah, my rear was giving me the shirts too, kept losing air, faster with every reinflate. Was coming out the valve hole. Got sick of it, so stripped it. Turns out I'd nicked the tape when installing it, and my lazy single layup let the air in the spoke holes. Retyped, double up, with an extra layer over the valve hole, extending 3 spoke holes either side. Hasn't lost a bit since, about a week and a half.
#knuckleswasadrunkenchunt