Nice additions TeacherRO - altho these have been part of the NOLS WFA protocols for quite a while. Are you trained in a certified WFA? I strongly recommend at least the 2 day course, nothing else prepares you for the realization that you're caring for this young broken Scout or spouse or fellow hiker on your own for 72 hours. And the more you go out hiking with other WFA trainees, the less often you are actually alone. We now have 6 adults and scouts trained in WFA in our local Scout troop. All it takes is the time to sign up and one weekend every couple years to recert.
I go out with my full WFA first aid kit almost every hike, size or weight doesn't bother me - it fills a gallon size zip lock with other FA components like webbing spread out over my pack. I pity the weight conscious who pare their first aid kits down to a few band aids and an aspirin. I'm sure they're moving along fine with that most times, its just the last hike that will get them, or someone else.