Fooling an educated old buck's senses and keeping your decoy scent free is key to having successful hunts over it. Fumes from the painting process put off scent for a while after production, it’s a really good idea to order your decoy in the summer and to leave it outside for a month or two to let it “air out” to eliminate any residual paint odor.
Before and after entering the field it is a great idea to spray down your decoy with your favorite scent free spray to cover any human scent it could obtain through transportation or the setting up process.
Another popular method is adding attractant scents directly to the decoy. For even more realism adding them directly to the tarsal scent glands located inside the hock of the back legs.
Melissa Bachman has a great tutorial video on how she hunts with her DSD Posturing Buck