cucumbers

Hey everyone, looking for an opinion on spacing of trellis / support wires for cucumbers. I have a 16 foot section of garden that I'm going to add cucumbers to. I was sinking 4x4 posts into the ground roughly every 5' which I was planning on connecting to each other with just horizontal wires...

So I want to try a couple of pickling specific cucumbers this year. I've decided on trying the National strain, but am not sure which other one to try. I've whittled it down to the Boston Pickling Cuke or the Chicago Pickling Cuke. Does anyone here have experience with either of these that...