the other pc said:
When washing I don't apply any force, just the weight of the brush or less and I try to visualize the tips of the bristles just barely "bumping" dirt particles loose. If the finish is smooth and waxed that's more than enough to dislodge and carry away dirt.
Yep, that's it exactly :xyxthumbs
A friend of mine uses a BHB sorta carelessly, at least by my standards. So yeah, he gets linear marring from it. But before I coached him about the BHB and going front-back (note that most of the coaching didn't "take"

) he was getting much *worse* marring (far deeper scratches), and it was circular (hence more obvious). Non-autopians are gonna mar when the wash/dry no matter what they use. But the BHB *does* at least rinse clean and as SK2003TypeS found with his wheels, you can only "scrub" so hard with one, not as hard as with some other wash media. So in a worst-of-all-possible/non-Autopian situation, I still think they have a place. People who drop sponges on the ground or never wash their mitts would be far better off with a BHB and with most "normal"

people I'm satisfied with just making some improvement to their process.
Oh, and yeah, they *ARE* just great for wheels and other things you don't mind being sorta aggressive with.
Oh #2, as I gradually redo the MPV (panel by panel, one per each wash), I'm just amazed at how *little* marring it has from 14 months of quick/careless washes (by my standards) with the BHB. I really could get by without polishing it at all, as I did last year. Three years of BHB washes and I'm only polishing it for the second time since new.