Does anyone here CCW with a Kifaru Koala or Koala Lite? I recently happened upon it while searching for something else. For quite awhile I've been trying to find a chest rig that would work for CCW; not everyday use as it wouldn't blend in well for urban carry, but for special applications like hiking, camping and the like. It looks to be well made and well designed. If anyone here has feedback I'd be interested to hear it. Is it comfortable? Does it stay put?