I think i read in Yogi's pct handbook that "no one" uses any water bladders or inflatable sleeping pads on the PCT due to cactus spines and numerous other prickly things. Is this true? I had a z-lite for a pad in my hammock this year on the AT and i never enjoyed a nights sleep when i used it on the ground. Has anyone managed to use either item without them being punctured? I imagine that a little care would keep a water bladder from puncturing, while a sleeping pad might be a little more difficult.