AV is any thought that supports smoking now or in the future, Carlotta. So in that sense, yes, it is a crutch. Maybe like an alcoholic believing that they can quit drinking by switching to nonalcoholic beer or wine. That doesn't seem to be playing the percentages really, does it? Better to be done with it, and with all of it, I should think.
The RR model states that you are able to quit smoking with no crutches, that any discomfort will be temporary, and that you can choose to quit smoking for good. Even so, I still believe that you should be kind to yourself, and make this as easy as possible as Jeni26 said. Lots of water, high fiber snacks, moderate exercise, and everything that goes along with looking after you.
You are able, with what you have and who you are, to make this decision to quit smoking and never change your mind. You don't want to smoke, you don't need to smoke, but your beast does. Too bad for it, because you are in charge.
You can do this anytime, but, of course this time is the best. You can do this, Carlotta. Folks quit tobacco all the time, and you deserve to be one of them. Onward!