I had an interesting conversation a couple weeks ago with a friend about the "charring light," and he made some interesting points. For the most part, I've always been a light it and smoke it guy, except when I'm not. There are many times when I'll touch flame to leaf briefly, and then let it sit for a few minutes before relighting. It often enhances the early part of the smoke. Usually, though, I light and go.
My friend had a different idea. His theory is that the first lights, he does this slowly, gently, several times, warm the tobacco in the bowl, reducing condensation of the moisture that inevitably results from combustion, and resulting in a cooler, drier, more flavorful smoke with fewer relights needed.
At his prodding, I tried it his way, and have been doing it ever since - mostly. I'm not sure the difference is dramatic, or even that it makes a significant difference, but it serves as a reminder to slow down, enjoying the ritual a little more.