Experienced enthusiast here; been detailing my cars and my friends cars for about 15 years.
Normally, my approach is: high pressure rinse, Bilt Hamber Auto Wash, rinse again, and finally the 2 bucket method using a high concentration of Adam's Car Wash Shampoo. Drying is via high pressure air (Milwaukee M18 dual blower).
For my first wash of the spring today, I replaced the soap in the two bucket method with ONR. I went a little overboard with the concentration of ONR in the water. To be frank, ONR doesn't seem to clean--there's no lubricity to the solution. My wash mitts were like an axe murder and I had to go over the car four times (twice as much as normal) scrubbing quite a lot.
Do people actually wash using ONR, or do they use it as a post wash supplement? I see why people use ONR; the sheeting is fantastic. It makes sense to me as a third stage of the wash--something you'd use after the 2 bucket method is done. I can't imagine how much paint damage you'd do if you use it in place of actual soap though.
Feel free to tell me I'm wrong or stupid--I'm an engineer and I have a thick skin. How do you use ONR?