Yup no argument here CM but the agency said had to do ad clip vs vent fin or other. Not sure if it was before you came to us for the meetings but if you recall it got heated over that at the meetings as they were not clipped at all for years for that reason. Agency said all the mass marking requirements dictated ad clip. My preference is an vent clip which was used for some of the work on Coho the volunteers did. It was an agency thing.