I'm planning for a thru-hike in 2012 and I want to know which type of self sustainable fuel would be better Esbit's Fuel Tablets or Coghlans Camp Heat Fuel containers. My big worry is temperature change and keeping them in my pack. Coghlans says it combustable which scares me because I don't want it to set my pack of anything on fire during the hot summer months on the trail. But the Esbit Fuel Tablets don't burn as long and are more expensive. Which one is better to use for long term hiking and has anyone thru-hiked using only one of these two methods(and firepits when nice outside)?