Taking out weeds doesn't ruin a lake...it just takes away a visible contact point between the angler and the fish. The weeds are nothing more than a breakline fish relate too...usually lakes without them are better because it means they have better water color...more shallow movements and consistent fish activity. Just fish the secondary and primary breaks and drop offs...the fish are there. You gotta get off the banks and fish deep. trolling is a great option as well...cover a ton of water on those breaklines on the CORPS lakes that just run miles and miles.