Im sorry but many may disagree with me but i cannot see the point in cutting down the amount you smoke its either you are going to quit or you are not.
Ive tried it myself and the more i tried the worse it got, timing it for when your allowed another ciggy grrrrrr.
If you going to quit do it and get help with the NRT they are your virtuall ciggys which are alot more healthier and cheaper, then again i have known a couple of people who just done it with out the NRT i myself couldnt have done it without. I have said to many people if i can do it well that says it all and my smoking days has a lot of stories lol some not nice and some even nasty.