Here's a suggestion for next time you go:
RUN POINTS!
Take only 3 rods:
- Rig up a topwater (floating frog, ribbit frog, buzzbait if the grass allows it, etc...,
- A medium running crank (bandit 200) or spinnerbait (for the spinnerbait use a heavy head but a small blade so you can reel it faster), Swimbait, whatever.
- And a bottom rig like a C-rig, shaky, or T-rig with a worm, craw, creature or Lizard on it.
Just go from point to point, skip everything in between.
Obviously, with the topwater you can throw it over the grass, for the others you'll probably be fishing offshore at whatever depth it gets clear enough to run those baits across the tips and sides of the points.
Cover water.
Vary your retrieves, even with the plastics on the bottom. Stroke it, slow roll it on the bottom, lift/drop like normal, until you get bites.
Vary your angles, on one point fish the sides, on another drag it across the tip, on another, try to retrieve it uphill, until the fish tell you something.
You can hit the entire lake if you're fishing points this way, make 2-3 good casts with each rig on each point until you start to get some bites, and move to the next one.
Once you get a few bites, then you will begin to see how they are holding and you can fine tune your pattern from there.
- Are they on the main lake points, secondary points, or back in the backs of the creeks?
- Are they on top, middle or bottom?
- Are they in shade?
For a 4th rod, bring something to pitch into the holes in the grass, on the points. A 1/2 oz. flipping jig is a good choice, use a skinny craw trailer or something that won't snag the grass in the tentacles.
Again, don't finesse them, let it fall to the bottom, twitch it a couple of times, maybe jig it a little at the top on the way out in case they're suspended at the top of the mat, and move on.
Just try to cover a lot of water, and limit yourself to just a few good casts/presentations per point.
Treat each point like a reset on your concentration, you will stay sharp if you know you only get 3 casts per rod before you have to pick up the other presentation.
If you look at as many points on that lake as you can, you should find a few fish and hopefully learn a lot about the lake in the process.
BTW, some version of this approach is a good way to learn most reservoir style lakes
Also, there are definitely times to slow down and fish finesse, but if you're trying to learn a lake, this is the best way I know.
You need to know where the fish are to some extent before you can slow down, otherwise you could spend the whole day in a dead area.
That is where covering water pays off, if you hit enough points and eventually get enough bites, you should begin to learn what type of places they are feeding on.
Once you've learned the areas to fish, then you can slow down and fish them more thoroughly, but I would commit to the run and gun style for a trip or two before worrying about that.
And yes, there are some fish in the mid lake trees there, and there are some fish on the dam, and there are some straight banks that will have fish too, but the point deal is just a rock solid way to eliminate about 90% of the lake and get to covering some water fast.
Those other patterns are just burning the clock unless you already know where the fish are.