What time of year did you do your '12 JMT Hike and what time of year do you plan on doing your '13 JMT Hike?
I did the JMT in late July '12 where both my buddy and I just cowboy camped each night. I brought a tarp but never used it, mostly because of the conditions and the fact that my buddy snoring required some space between us to cut down on the noise! I had a 30 degree FF bag and I stayed plenty warm each night even up at 10,200 feet. Of course, every body is different and campsite selection can make quite a difference as well.
