I'd say right now is prime time for the decoy, personally I'd stay out of the timber with em though, in my own experiences I've spooked more bucks than had commit to it in the timber, however on field edges I've had success from Halloween up until mid November, you could pry even get away using it later under the right circumstances. I also love using the snort-wheeze when I've got a bucks attention and an old timer gave me some advice about using a half rack, for whatever reason I've yet to have a deer commit then spook with the half rack, they usually eat it up all sizes of bucks from forkers to mature deer.