I'm continually surprised by the inconsistency within a brand on how easy tires are to set up. I've just finished with a DHF & DHRII mounted onto Spank Spike 28 Race rims. DHR mounted up with a floor pump. DHF barely held a bead with air compressor and a lot of soapy water. Ended up leaving a tube inflated to 50psi over 36 hours. After that, the thing set up easy. Neither tire ever made the classic popping sound when setting up, but both are holding pressure flawlessly now.
Just supports the first half of the theory that tubeless is a shit ton of hassle once or twice a year with virtually no issues in between, while tubes are easy to install but a moderate hassle over and over and over again all year long.