The best position I have found using shooting sticks comes from my experience shooting long range with blackpowder cartridge sharps rifles. Sit Indian style with your legs crossed. The lay the stock (NOT THE BARREL) of your firearm in the cross sticks or shooting sticks. Wedge your elbows into the folds of your knees, then lean just slightly into the gun. This provides as steady of a position with sticks as I've found. Unfortunately many of the stoney point sticks I've tried are too long for me, and I have the best results with a homemade set. Using them with this position I can lay round after round with a 45-70 into a 8 inch circle at 200 meters with open sights. With a centerfire and scope, you should find this nearly as good as prone. (of course nothing is better than prone) Hope this helps
Nick
Nick