I have a question about QD's. Ok, you just did a detail on your finish. Looks really nice. When do you actually use the QD's? I mean lets say I drive around a couple days later after my detail is completely finished, and I use a QD. From debris being on the car, I mean small particles, wouldn't this cause web scratching even if I use the appropriate MF towel? I'm just not seeing the advantage of using the QD's. Can someone help me with this? I've never tried them but want to and I want to be sure of what I'm doing so to do it right. Thanks! 
