I thank you all for your input. I think I will go with the hand chain saw in leui of the sawz-all blade. It is cheap enough at approx. $10 and IMHO would probably keep my hands in better condition for other vital tasks. One of the reasons I enjoy this site is that there are varieties of opinion and respect for the variances. All I have to do now is find a space in my pack to store the saw. I will probably put one in each of my vehicles emergency boxes.

Again thanks for the ideas and information passed along.