I’ve had the same 5 gallon feeder for a decade. I only throw corn 1 a day for 7 seconds at night since they’re primary nocturnal.
As for hunting. Keep the wind in your face and you’ll be good.
You’ll get sat hogs but once you shoot them. They’ll go nocturnal. So if hunting. I’d hunt lightly if your wanting day hogs. Like shoot 1 a month. Which is not acceptable in Texas.