Just a note on getting set up quickly. Two things are required. First is practice in recognizing a place that will actually work to shoot from and as you learned that is just not always available so you have to pass. Second is having your gear organized so you are not rummaging around in your pack looking for stuff you need when time is critical. I carry a small bag attached to the outside of my pack with everything I need to make a shot. When I see something I take off the pack and unhook the bag and take it and the rifle to a place where I can set up.
Having the right bipod on the rifle helps. I dislike the tall Harris bipods but sometimes you just have to use one because of the vegetation and other conditions.
I just can't get very excited about deer hunting anymore but I have only been home a week and am already planning next years elk hunts