I'll take a different route...how about a 4 day tournament on 4 different lakes? Make the guys really earn their check.
Or, have a split event. Half the field fishes 1 lake 1 day not known for big fish. Other half fishes day on on a different lake nearby known for bigger bags. Then day 2 switch. Day 3 go to one of those lakes, day 4 the other. Cuts down the fishing pressure, keeps the pros working for it.
I'd like to see a complete curveball thrown to them. For an AOY tournament (50 boats or less), send them to some small lake like McConaughy or even a lake in Colorado that they didn't ever think about having bass (kind of like Oahe next year, but smaller). Those lakes aren't big enough to support a full field, and they can be really tough, but you can find decent fish.