There will be tons of boat traffic that weekend. The Lake sucks this time of year. You might have some luck if you can get WAY up an arm where little of the pleasure boat traffic goes. If you're anywhere near the dam, you might have better luck below it on the Osage. It has silvers, bigheads, grassies, occasional buffs, and gar. If a lofront moves through, you'll be shooting till your arm falls off.