R wannabe wrote:
Had the same problem. I ended up supplementing the wire with three rows of barbless, electrified. The existing barbed is grounded directly to the charger (NOT the top wire, it is grounded separately for lightning suppression). One wire installed below the bottom barbed and then between the next two sets.
You can't use regular electric wire, it will stretch and wrap around the barbed rows--grounding out the whole thing. It has to be tensioned as tight as the barbed wire, not quite high tension but as close as you can get without snapping wire or pulling posts. You want that bottom wire as low as your charger can manage. Also use ceramic insulators if you have any possibility of fire or prescribed burns.