Brew, you hit on the $64,000 Question.
Wish I had the answer.
It boils down to confidence.
Confidence in your knowledge of the body of water, water conditions, weather, forage, the types of techniques you have faith, the rods and reels spooled with the line that you think will work best and the baits you think will be successful. 100% confidence along with gut feelings.
Your question is the reason we keep 500 pounds of plastics and 1,000 hard baits on our boats or we drag around 50 pounds of plastics and 200 hard baits as we bank fish. The less confidence we have in what we decide to set up and the baits/techniques to use means more unnecessary plastics and hard baits we will take with us.
So yes, usually have everything set up for the first cast the day before we venture out, with the understanding that if it does not produce strikes you have to be flexible enough to make a change.
I usually start out with a white buzzbait followed with a Monkey Butt Whopper Plopper and then it is open season for my RICO's and Sammy's. Depends totally on my confidence in these baits. Sometimes I make the right call; other times I don't.
I then go to my drop shots, Senkos/stick baits, shaky heads, baby brush hogs, lizards, spinnerbaits, jigs, swim jigs, crankbaits and creature baits. I am on the hunt for 1) where are the bass and 2) what are they feasting on at that moment to try to create a pattern.
So it is important for you to do your homework on the body of water you will be fishing, the weater conditions, water clarity and wind direction to set up your rods and reels and baits to match your confidence level.
And remember, be ready to make changes on the run.
Once you find the pattern it is guns a blazing and lots of fun.
Have fun and be safe.
P.S. Keep a log on your adventures so you can refer back to it when you fish the same body of water I the future.