How do you connect your single wire and jumpers ?

In my experience the "cross connect" method averages the loss of single wiring with jumpers evenly across the entire speaker.

First put the jumpers in to tie the positives to each other and negatives to each other. Then connect your positive speaker wire to the positive treble post and your negative speaker wire to the negative bass post.

The possiblity of your being able to hear a difference between having the cable on the high, low or diagonal posts are somewhere between zero and none. The only possibility being if you have REALLY cheesy jumpers. In that case, doing the diagonal connection could cause a disparity between your sections.