I definitely need to start carrying something when I fieldcheck for courses. I have a chain-type, but not as nice as 'Bent's. Mine has no links. It's more like a wire.
I really want a bow saw type as well, though, because the blade is a lot thinner, and you end up doing less work (assuming a sharp blade, obviously). I wouldn't carry it much, just when I knew I had a lot of cutting to do.
I assumed you needed a saw to clean up a bunch of deadfall, rather than just a few branches. I can't imagine using one of these for an hour or two. I actually used a bow saw for three 9-inch logs about a month ago. It was about 20 minutes of work, and I had a major pump in that arm for an hour or two.
When I was a teenager, we needed to cut some fallen trees and we didn't have access to a chainsaw, so my mother dug out this ancient 5-foot long buck saw, with handles on each end. We sanded the rust off the blade, and used a little file on the teeth, which were huge, like 4 or 5 cm long, and my cousin and I stood on either side of the log and cut some wood. It wasn't hard work, but we probably only cut for 90 minutes or a little longer. I know a lot more about sharpening saws today---I could probably get it working a lot better---If I knew where it was. I'll ask around. I think I know.
{Edit. It is apparently a crosscut saw. It's like
the one in this picture, but with a taller blade, much shorter, and with a 14 inch long handle on either end. Lehman's
still sells these things. (They specialize in non-electric stuff for Amish and Mennonites.)}