The last 10 / 20ft to be honest most people don't get that curious unless your on a tourist beach, then again I have used bright dayglow orange in the albert dock when after peeler crabs and it was tied to a pole on the dock side and no one seemed to notice.
I think the simple fact is most people are not as observant as we feel, the only and I mean only high-vis thing I would avoid is marker floats, I tried them on smaller pots and I had boat owners try and pull them up.