Originally Posted by Dee
Seriously, whatever you find works best for you! I generally poke toothpick size holes, enough to give me the air flow I desire.
Originally Posted by Drewzi
It would be very hard because you would have to take into consideration the smoking environment. Humidity, temperature and wind speeds (if outside) can all play a factor on how much heat your current choice of tobacco will need. Not to mention packing methods can change depending on your bowl selection even thought the tobacco is the same.
Agreed, packing methods, type of tobacco, bowl, own experimentation, etc... Generally I use a small needle for wetter tobaccos and a sharpened poker on my tongs for dryer stuff like nakhla or dm.
How-To Etch a Hookah Base:
How-To DIY E-Cigarette: