I've been lurking along the edges of this TANDEM discussion.
Several years ago At the International Draft Horse show in Sandpoint, Idaho.
I was elected to fill in as the armature driver in the 4 up class. (I had
driven 4 only one other time on a snow road with a feed sleigh in Jackson,
Wyoming). I did okay even drove around the cones of the figure 8. I even
made a perfect stop in alignment with the cone where I needed to back up
the length of the wagon and then proceed.
As I pulled the lines I shortened the leaders instead of the wheelers and
the leaders turned right back along side of the wheelers as we backed up.
I told everyone the leaders were just checking to see where we needed to
back up to.
It was a good learning experience since no one was hurt and it was
EXCITING to feel all that extra power.
BUT please practice line changes BEFORE you get in a show ring.
Dell M. Mangum TARGET POLYPAYS "pure bred sheep since 1978 and Shire Horses since last Saturday" Blackfoot, Idaho