I took about 5-6 years off, and started smoking again a few months ago. I also take tiny rips though the day (mostly at work and before bed) and rarely get super baked...which is mostly a good thing because I tend to get real down on myself when I get real stoned. It's still easy for me to do though, instead of my usual tiny crumb load a full bowl, and finish it even after my brain says that's more than enough two hits in. Personally it's a bad idea for me unless I preload with a 1mg k-pin or something.
But hey, if I don't do that I can smoke every day and make an 1/8th of headies last two weeks, instead of a couple days. . . which is about what I'm comfortable spending on drugs these days and keeps me away from grams of speed and/or RCs.
Maybe it's the same for you?