I've just converted Maxxis Ignitors 29ers to tubeless. The 26er version is already UST but the 29er isn't. I have UST wheels but I could not get the tyre bead to seat, even with an air compressor so I bought the Stans 29er kit, installed the rim strips, soaped everything up and put the tyres on. I still needed a compressor to seat the bead but finally got them up and running. I've only ridden once on the tyres but they've remained inflated for the last few days so everything seems to be ok.
I need to get out onto a technical trail just to ensure that the tyres are seated fully before the final sign-off on the conversion.
I run stans in my 26er bike and have only had 1 puncture in 12 months. I just refilled a bit more stans and the problem was solved.