I have not ever fished Buchanan, but if I did, I would get out a lake map and chart out every possible hump, point, dropoff that could hold fish in 12-25 ft of water and begin to scan them for fish. On the lakes I fish, lately I am finding that they are not holding on structure in the same exact spot very long at all. SO, I move about every 3-5 minutes - sometimes as little as 20-30 feet on the same hump or until I find them again. often I throw out a plastic marker and by the time I get spot-locked, they have moved so drifting in a slow wind sometimes works too. I seldom catch fish if I don't see them on my sonar or sidescan. If you are on structure and the fishing is slow, move to another structure. Once you mark fish and identify the depth which they are holding, note that and look for them at that same depth at the next hump or point. don't waste time if you are not marking fish. Another thing to be aware of as mentioned by Mr. Dennis Christian - "try to position your boat down-sun from the fish so as to not spook them with the boat shadow". In shallow depths on bright days, this might help too. Vary the retrieve of your lure or slab. Sometimes a horizontal retrieve is more preferred than a vertical, therefore, make a longer cast, let it sink to the bottom and work it back to the boat 3-4 turns of the reel, if no bite then back down to the bottom and repeat. Different size of baits sometimes make a difference along with color. Lately, Chartruese and white slabs and Cocomoe minnows from Moe's tackle have been popular. I also prefer Mepps Spinners and am a student of the Dennis Christian technique found on his videos. Look up Dennis Christian on this forum and watch his video on how to fish the Mepps and you will be sure to catch more - if you are on fish! Let me know if I can be of any further help. Hope this gets you and your boys a box full!