RE: Synthetic deer lures
Last year I played with a buck in an area I didn't hunt until later in the season (long story, he's huge and I'm stupid). He had a large scrape in a MAJOR doe crossing between feed and bedding, it was close to town, in a farm, and you could drive right by it. I often did, on my lunch hour, and would squirt Buck Fever pre-rut then rut scent in it. When I would return a few days later, he had typically always torn the area up. I kept this up on and off, kind of as an experiment, but never really hunted the area until later, as I was chasing a monster in a neighboring county.
Bottom line, the scent didn't chase him or the does away, it seemed to work as advertised. I plan a repeat performance this year, only this time I'll be waiting.