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You've made your point. Repeating it doesn't make it stronger. That is a factor to keep in mind and there is a chance I could scrap the idea. Ecology is one of the reasons I've considered dropping a few breadcrumbs rather than running a line. Another one not mentioned so far is I'm concerned less experienced and prepared divers might follow a line to the reef. So I don't want it to be too visible. There would be a significant jump to the start point.