Having the same problem with dust/pollen, is worse on dark cars me thinks, esp. after it rains and beads
What I've read else where going with QD and a microfibre cloth could be a problem as you might scratch the paintwork with dirt etc.
There is some reference to using a car microfibre duster first and then do the QD.
http://www.autopia.org/forum/guide-detailing/80229-quick-detailing.html
