Electric Fence in snow

I decided to try my electric poultry netting thru the winter but I don't think it is providing enough shock to a predator walking on the snow.

I have 6.5 kv at the charger without load and 3.5 kv with the netting connected. There is enough juice there to create sparks at the gate but at the end of the line I only have about 1.5 kv with the volt meter ground in the soil. A predator would be walking on the snow and not even connecting to the ground. I get maybe 1 kV from the fence to the snow.

Maybe I should run some electric rope and adjust it to the depth of the snow and disconnect the netting so it doesnt ground thru the snow..

Any suggestions? Anyone have luck with netting in snow?