Well...I tend to load a bowl quickly, not carefully packing it, ( using a wide variety of pipes in my daily rotation I find packing a pipe carefully is exclusive often to individual pipes whereas the loading & stoking & poking method, to see if it draws, works with most pipes quickly), I then puff on the pipe to see if it blows, (see if the surface of the tobacco in the bowl is disturbed), if it blows, then it is likely to draw & stay alight to puff on, if it doesn't blow, then I poke it & stoke it around with the screwdriver, which gives me enough leverage to stoke the base & feel how compact I've loaded the tobacco, then if it blows I will light & often it will puff without relights. This works well with flakes just stuffed in, as well as ready rubbed, with a flake stuffed in it needs a bit more leverage to obtain a correct compactness.Finger, Czech tool, pocket knife. I've never had a problem with a pipe which demanded "leverage". I can't even imagine such a situation. Enlighten me please, as I wouldn't want to get caught unprepared.