I heard you the first time. he he he …
Ever watch those timber working horses that are voice controlled?
Ever seen how sled dogs are hitched?
Do you think they started with one horse? Bet they had a good idea of what was going to happen and were within 2 or 3 horses from the get go.
Control lines? I can’t spell reins. Left lines go to the left side of the left horse, #1, then a short line from 1 to 2, a short line from 2 to 3, a short line from 3 to 4 and a long line from the right side of #4, the far right horse and the nerd controls the chariot with just two lines.
6 in a row is easy. Rows behind the leaders, if real work hoses used to harness work don’t need individual control, they will follow the leader or which ever horse, ox, donkey, mule, ( well they can be more of a problem because a lot will fake pull, even some experienced horses will do that ), so a 6 front & 6 deep is very doable.
Don’t let Western movies guide you about heavy work horses, two different things using very different gear & doing a different kind speed of pulling.
My Grandpa had the first steam tractor in North Texas. Grandma was a master team diver, but never learned to drive a car. My Dad was driving a buck rake at 8 - 10 years old.
And 98 draw bar horse power was a big tractor for farm type work 30 - 40 was way more common. Those are so big & heavy, they can drag 2 D-8 Cats backwards like they are not even there.
Go to the steam tractor events in western OK or TX. Some of that old equipment that they actually work real fields with are amazing. Farmers actually save small fields of different things just for those events so they can do actual work like they were designed to do.