I was actually thinking the same thing about the sows running the big boars off. Now that you mention it, your claim about the time they show up before and after the sounder is pretty accurate now that I think about it. I will get a bottle of that spray and try that to. I use a timed feeder that goes off @630am and 7 pm for 7 seconds. I use the sun slinger set up. The pictures are pictures taken from my phone but you can see he's a big boy. I tried the corn soaked in beer and it actually stopped the hogs from coming in a different club. Coons liked it though.