^^^ best results are achieved with a newly waxed surface and using de-ionized water. BUT with a relatively clean surface (just washed) and ordinary tap water almost 90-95% of the water can be removed. even when the car is washed using only water (no shampoo, when you just want to get rid of daily dust) this method still does helps a lot. less water droplets to wipe off means less time and effort to dry rhe car.
btw, i prefer mf cloth over chamois. parang mas madali kasi, less force needed to move the cloth over the surface.