The bottom strand on the middle fence is at 10" from the ground now (barely above Dan's knee height), the 2nd at Dan's chest height, I moved it down again when I had the field topped last month, the grass is about 6-8" long with the odd more straggly bit, I really can't go much lower without shorting it. I did put 4 strands up before, he still went UNDER the bottom one, I also had posts every 2-3m around that bit. I get that putting more posts in all the way around would make it harder but I just don't have the cash to spare for 300m of posts every 2m at the moment. What gets me, the perimeter electric fence into next doors 3 ungrazed acres, the bottom strand is at least 2ft high and he never goes that way (maybe that's the ones you have noticed in the pictures) and the bottom fence down to my unused acre is a single strand balanced on sticks I just poked in the ground by hand and not even powered, he never goes that way either.