I live here in the South and the sugar ants were covering my feeders. I'm on cinderblocks so I can't do the oil stand. However, I tried Dichotomous earth, borax baits, regular baits, cinnamon, hot pepper, homemade traps, you name it. The only thing that stopped them was the Vaseline layer. I put it about an inch wide and very thick around the bottom board and bottom deep and it was the only thing that stopped them.
No luck with the SHB. Still working on that problem. Tried the cd cases, bait traps, oil traps, beetle blaster, you name it. About all I was able to do was fight them back to numbers that didn't annoy the bees too much. The year I broke down and bought the ventilated Freeman traps and am comboing them with the beetle baffles. Way too early to tell if it's going to work or not. Only doing it on my 4 main production hives due to cost. Way too expensive otherwise.