>>>Don't the extra horses still have to cover the same amount of > ground? How much easier for them do you suppose it is to cover say 25 > miles > unencumbered as compared to traveling the same amount of miles with a > rider?
Interesting questions! It has to be easier to go without a rider. I think the rider impacts the horse quite a bit, particularly if the rider is leaning back, and balancing on the rein. Judy http://icehorses.net http://clickryder.com
