There was a line (Cortland??) that came out about 10 or 12 years ago that also had ridges... it was dropped from the lineup after one season... there was concern about dirt, abrasion to the guides & it was limp... didn't cast well at all.
Since I am not an Airflo fan (BAD experience a number of years ago) I leave the experience & testing to you all.
Preston, know about this previous line?
Later,
Peter