I'll answer for you Larry, since you're no longer a carpet cleaner and you never really reach the 2% level, but the reason you didn't use an RE was because you didn't want it to wick or smell knowing it would go too deep, even though you were removing way more soil than your AW29 or PC titanium everywhere. But in reality, it was all about the final appearance. That was more important to you than truly getting it clean.
Sounds kind of familiar doesn't it? But if you had hung in there and had used a modern OP machine with modern pads and modern chemistry, you would know like I do and many here that the best visual results are attained with this new system.