Back several years ago I used the scrape drippers on real scrapes, usually with Active Scrape or Power Scrape. Tried the Power Scrape in spray bottle one year to make mock scrapes. Unfortunately I didn't run cameras on most, if any, of these and so don't know the real effect. I think they did get worked a little, at least the real ones. Now I have either been leaving them alone or peeing in them myself. Last year or the year before, I opened a scrape where a natural one had been for many years and hung a rope for a "licking branch" and peed in the scrape. I did put up a camera and got a little action on it, but they also made a real one about 3 feet away under the same tree! Guessing they liked the real licking branch better.