Crb works well on frieze but when I OP a frieze I use a glider under the machine The glider helps take some of the weight off the frieze to avoid tip blooming. Depending on how bad the traffic areas are, I use my crb to do most of the scrubbing in the heavy soiled areas. Then go over with the op to extract.
I'm just a little gun shy on frieze with OP because of the loose construction
I'm just a little gun shy on frieze with OP because of the loose construction