I took WFA a few months ago, and they only recommended use of a tourniquet as necessary to save a life at the possible cost of the limb.
The WFA class was consistent with this excerpt from the
NOLS Wilderness Medicine Book.
Note that the excerpt acknowledges that the issue of tourniquet release in wilderness medicine is the subject of "ongoing arguments," meaning nothing is definitive.
By the way, this book is available for Kindle (and therefore readable on on iPhone). I just
downloaded a copy of the NOLS book from Amazon for myself. Nice to have a Wilderness Medicine Guide at your finger tips in the wilderness.
