This has been extremely helpful. Thanks, guys. I am leaning towards the Primos monopod. I am being told that the tripods and to some extent the bipods can be cumbersome to set up in a hurry, are heavier, etc.. Monopods can double as a walking stick in rough terrain. Also set up quicker. My last question is: How stable are the monopods? Will they do the job at distances over 100 yds if there is no other kind of support or rest available?
If that is the route you are going to go, you would be far further ahead getting a proper telescoping walking pole... many come with a rifle saddle to fit on the handle, but even without, you just grab the grip and rest the rifle over your hand and against the pole, or just run your hand through the wrist strap and grip the rifle as usual while allowing the pole to hold up your arm and rifle... it is surprisingly stable... and then you have a legitimate walking pole that can hold up under some weight, as opposed to a flimsy pole design to support only a rifle.