We have grass three inchs tall in feb. by april you'll have fish in all stages pre spawn. Spawning and post spawn it'll be how ever you want to catch them some grass will be close to topping out by then I'll be throwing Lipless, square bill three foot or less and big white spinnerbaits and I have also fished this lake for ten years three days a week or more over that time and only caught one smallie so less you going to fish forty foot deep by the dam on rocks don't look for them