I run NoTubes (Stan's) ZTR Flow rims on Pro II hubs and it's an superber wheelset. The Flow rim is far superior to the DT 5.10 rim, lighter, wider and tougher too. They're 're a doddle to convert to tubeless with rim tape, valve and UST tyres.
how much are the stans rims? fast going off the 5.1s with there recent price rises. looked at sun rims 29mm wide rim, only 20 grammes more and cheaper.