I have been peeing in active scrapes for years,and I think it works great.
However I only pee in them after a morning hunt,that way it is at least a few hours before a buck visits the scrape.(most of the time)
And by then it smells like ammonia.
I feel like if I pee in them in the evening hunt they could be visited too early and smell different than deer or(ammonia)pee.
I have always had good results peeing in scrapes and it is way cheaper than $12.99 per oz for deer urine.
I can put about $75.00 worth of scent on a scrape for basically free by peeing on it.
I know some on here will be skeptical and thats fine,but you should at least give it a try,I think you will be surprized at the results.
One more thing I have learned,and I learned it the hard way....LEAVE THE LICKING BRANCH ALONE,nothing will kill a scrape faster IMO than messing with the overhanging licking branch.
Good hunting.
Ken