Three good baits in post-spawn:

Triple Trout
Lunker Punker
BBZ-1 Trout

Post spawn is the time when you want to start working your bait faster and with more erratic action. Especially at a lake like Casitas where the bass are likely to school up, willing to move long distances on a bait, and chase things close to the surface.

At all lakes there's a period of 1-3 weeks where fishing in post-spawn just sucks. If you can see the fish during this time they are often hunkered down on the bottom recovering from spawning. We jokingly call this 'log mode' because the fish lay on the bottom like logs. You'll see fish laying in grass like this if its available.

Once that's over, get out on a nice breezy day in the afternoon and you'll probably get better action. Have fun :)