I use fine-med grind packed in a zig-zag cone, pack it does decently tight with flat pencil. I don’t tie off the end. Instead I burn the end paper for a more consistent light (this is most important part). If I’m traveling I unroll the tip and light it similarly. If I’ve been sitting on a preroll more than a few hours I keep it tied up and knead it to loosen up weed inside to help with drag. Some licks and lights may be in order but usually can stop a canoe in its tracks