Here's a photo of what you can do with two sets of sticks "offhand." This is Eileen shooting at the FTW Ranch in Texas a few years ago, where they demonstrated that another set of sticks under the "offside" armpit could really steady things down. We both tried the technique, and after a little practice were hitting a 5" gong consistently at 250 yards.
It also works very well with bipod sticks.