Is cloth much louder to the customer while riding thru inside the car?
Inward air pressure on the wraps might be a contributing factor. Sonny's says the air pressure should be 0 - 5 psi for a chain speed of 50 -70 cph. I'm running 50 cph, but need about 30 psi on my passenger wrap. I've tried less but then it flies off the car when rounding the corner from front bumper to side fender and comes out of contact with the vehicle for about 12 inches, and then comes back in and bounces off several times. And since I have no other brushes washing the car, that part of the car will remain dirty. But since I do have 30 psi pressure, the wrap is really squished up against the car; it folds some vehicle's mirrors in. I would think that if it were farther away and washing the car with the tips, it would do a better job.
Argh!
Thank you all for your help thus far.