I kind of assume "the bottom of the bowl," is not the absolute bottom; but instead just before the airway. There are times where I get to the "bottom" but there's usually an insignificant amount leftover. One light is fine for some tobaccos, but...as I have been learning there are some a second/third light is actually beneficial. Can change the whole experience for me. I'd prefer not to go to the bottom as others have said. Ash doesn't smoke well and no point to get there. Lighting again, as long as you're not just throwing a torch to it shouldn't be a big deal.