Yep, the scent of the rubber will disappear pretty quickly. I think it was Frank up above who talked about wearing them out while scouting or at other times you're in the woods, and that's a good tip. I also made it a point early on to walk through as much muck and mire as I could while traipsing about. The corn field I cut through on my way to the woods I hunt often has a flooded spot in it, and I make an effort to walk through it every time, even now.

I also leave my boots outside, except when it drops below freezing the night before I'm about to put them on, so they don't absorb any "homey" scents. I also make sure my vehicle is gassed up the night before I leave, so I don't wear them on the concrete at the gas station giving them a chance to absorb any of the station's odors.

As far as results? I've had several, several mature deer cross my inbound trail and never showed any alarm, including the 160+-class 12-pointer in my sig pic below.