The way I see it, your cannabinoid receptors are activated within seconds of inhaling. The only thing that's building up the tolerance is that your cannabinoid receptors are not functioning properly.

But, yeah, if you don't smoke for four months, you'll have more appreciation for it than you would if you stop for four days. That's if you smoke for reasons other than you've been demolished, hammered, and, tampered with, after you had your brain bounced around your skull.