I have my BFL regional championship and club classic both coming up and was thinking about what I should be doing to prepare for them. I have always been told to plan my work and work my plan so I was thinking about how to do that. We usually know the lakes we are going to and have preconceived ideas about what will work and where to go but fish don't always do what we think they should be doing. So plan out the areas of the lake to fish then work the area well covering the area and all sections you want to look at efficiently. Look at them several times at different times of day to see when the best action occurs comparing current flows and lake levels. Also, make note of weather and other variables.
On tournament day have a plan and be ready to adapt to what the fish are doing. Have a milk run planned out based on what you found prefishing and have contigencies to work with as well. In my experience, plans don't always go how we think they should and we have to adapt. If you don't get a chance to prefish take a few minutes to think through the past experiences on the lake and plan your trip that way giving you a starting point to work from and ideas of what to do based on past experience.
I hope some of this helps and that you find it helpful as you think through your final tournaments of the year. Good luck and tightlines on your Championship or Classic