[SD987]

"Been using one since they came out, California Water Blade"

Yep, that's the one...from the makers of that other controversial detailing product, the "California Duster".

I used it one time, after one pass the blade was dirty. I cleaned it off and washed/clayed the car again. But how many people would do that?

No one...seriously, you might be the only person on the whole planet who would do that...

Most professionals I know (on their own cars) spray a quick detailer like Meguiar's or Mother's on the car when its wet (lubrication) and dry with a waffle weave towel (not microfiber).

I've only clayed the Boxster once (before Rejex'ing) but now that the car is Rejex'ed I use quick detailer after drying. Not sure why, but I've found Meguiar's to be like ten thousand times (rough estimate) better than Mother's, and well worth the few extra pennies.