I use the quicklites and I basically just wait until the entire bottom is red hot and then smoke it. Some people I know just as soon as it sparks they put it on and start smoking. I wait until it's completely red hot on the bottom and when it's done sparking up and stuff.
P.S I can't stand the smell of the quicklites starting up. It has the most foul, chemical like smell ever. After it's all sparked up it's fine but as it starts... so bad.