Think positve:up... I would compare your methods and supplies to one like scottwax. He has posted several youtube clips that refer to ONR's uses. One suggestion that I will make to you that I recently adopted from Yvan at the MTE is performing strokes in one direction where the dirt is more prevalent. He has a waterless approach that seems to deliver very good results, but I am too much of a fan of the ONR system to gear away from it. But consider making sure that the area is moist from the ONR solution, you work top to bottom, explore using the 2 bucket method if it eases your mind, and watch the fears melt away. Best of luck to you, and feel free to ask any questions as we are all here to better each others ability.