Front of the pack has its dangers too - those at the back of the pack who forget to brake for T1 (any T1). Back of the pack and hang back for the first couple of turns is safest. If it's a long race the chances are you can make the time up, but for short races it means you won't be challenging for the win. Still, it's less frustrating than qualifying on front row only to get taken out on the first lap by a hot head behind.