I put extra flints underneath the pad. The hole I use for filling. I stick the nozzle of the fluid can into the hole, squeeze the can, and wait for the pad to slightly saturate. If it's way oversaturated, you can shake a bit out, and you want to be wary about the first light, but it's worked for me for decades. The fill lasts about a week, even in a closed car in summer, where the lighter resides with a Bic backup if I forget to fill. I use wooden matches indoors, but I love the big soft flame of a Zippo. Never scorched a pipe with one, and I prefer the regular insert. I have slightly scorched a rim or two with matches. The scent of a Zippo is negligible if you let it dissipate for a second before lighting, which also ensures a one-flick light every time. And yes, the closing snap sounds cool.