I've got six 3-4 month old calves that I can't keep in the electric fence. It happens this same time every year. My fence is; two strands of barbless wire, about 1/4 of the way around 110 acres and a 35 mile fencer. I've checked the fence and it's showing 5000 on the meter.The fence is hot but the calves just wiggle their way through it. If anyone has any ideas, please help. None of the older calves ever push the fence. We live by a busy road and my only other option is to early wean and sell.