I wouldn't say pee is pee, other than it all prompts curiosity. I think a deer can probably tell the difference between animals it smells, so I don't see why it can't tell the differences among predators and herbivores and 200-pound red-blooded Umuhrcans who've been eating a lot of venison sausage and asparagus.

Whether that causes a problem with mature bucks is an open question.
What's the pressure like in the area? Dogs, bears, coyotes, other hunters ... leaf peepers, mountain bikers, moonshiners.... Wandering hippie chicks ??
Have you thought about switching gears and hunting him well outside the rut? He's most unpredictable when he's searching for does. Once he sets his mind to do that, you have a lot of ground to cover. I think you want to be on top of him in his non-rut bedding area to catch his small, late, or early movements ( i.e., within the bedding area or running off-schedule during shooting light exiting or entering the bedding area).
OR, you want to catch him feeding on a favored late-season food source when the weather turns really bad.