I have a PocketChain saw and have used it several times on larger limbs and found it to be very effective. On smaller limbs or ones that are less secure it is more difficult to use.

I have reserved my PC saw as a camp tool and not for my bags. In my BOB I carry a Gerber Exchange-A-Blade Combo and found it to be a better all around saw. The combo has both a fine and a coarse blade and can be used single handed.

I believe that the Gerber is the one that Doug puts into his Aviator Survival Paks. As a side note, I based my BOB on Doug's ASPs contents list. He knows how to put together a good combination of items.