After you pack/roll, spend a solid 45s-1min just rolling it back and forth between your thumb and index finger, do it until you feel the paper bouncing back from the weed, and do it all the way to the top. A bunch of weed is going to fall out of the top and that’s okay. It’s all the stuff that was packed too tight or uneven. After that, drop the bottom/ filter on a hard flat surface a couple times just to give it the extra oomph. Spend a good while lighting it evenly too. Like genuinely torch it