It's not the smoke that ruins the hunt. I hunt using the wind. If they can smell my smoke... they got downwind, wind swirls and theyare smelling me. Game is over whether you smoke or not especially hunting on the ground.
I pass on 20 - 40 bucks a year waiting for a mature buck. I wish I could blame the smokes for eating tags over the years but that doesn't seem to be the problem. The mature bucks are just tougher to hunt.
Every once and a while I do have to put a smoke out to shoot one though.
Tim