I'm running michelin tubeless 28mm on two bikes. They've been great so far. I set my air pressure by the recommendations of the zipp pressure calculator. When running pressures in the sixties, an accurate gauge is important. I replaced the gauge on my pump with a new liquid filled winters 0-100 psi model. My old gauge was reading 8 psi higher than actual.
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I notice some people are putting a lot more pressure in the rear tire. The zipp calculator recommends 62 front and 64 rear for me.