Dry Dry to start on the bottom of the smoker, above add what you have, sumac, pine combs, cotton scraps twigs, dry weeds. Build it from the bottom with dry first and light down deep inside. Keep it going reach over and puff it occasionally. I like a cool strong smoke, so I start it with dry pine needles and pine cone, but add cotton, and sumac, and twigs as the day goes on. I always keep dry dry with me although. I also use 1.00, propane click long stem lighter. I do have compressed cotton, for LONG days.
Tip, use a wine cork to stuff in cone to put the smoker out. No need to wait for it to go out. If inside a vehicle, stuff the cork and open a window. I also use a metal bucket with all my tools. I rest/Hang my smoker in the bucket for fire safety in the field. I always carry at least a bottle or two of water also, for me and incase of small fire.
Hope this helps.