If backpacking where, at my age, less weight is important, I use Bipod Shooting Sticks:
http://bipodshootingsticks.com. They weigh next to nothing and fit well in virtually any pack. I've used these sticks for 5 or 6 years now for hunting elk and deer. When weight is less of a concern my favorite sticks are the Vanguard Quest T62U's. It is tripod, that can quickly converted to a bipod or a monopod and uses flick-locks for leg extension. It will also take a pan head for use with a spotting scope. While they are a little heavier than some sticks, what I really like about the Vanguards, is that they provide excellent support for glassing and shooting while sitting, without any extension whatsoever...just spread the you are ready to glass or shoot. In fact, I have only used them fully extended only once since I bought them. Since my hunting hikes and stalks are now at much shorter distances, they work perfect for my needs and also fit well in my day pack.
