No, I won't introduce a new skill to the 4e skill system that will unbalance it.
I was just discussing with a friend, who plays the hereditary prince in my campaign and plans on organizing a knights tournament. And we stumbled upon the ride skill. Some rule ideas for such tournaments propose the nature skill, which I find pretty strange. I'd suggest athletics or acrobatics (especially when it comes to staying in saddle while jousting), because riding is definitely a physical activity that shurely also involes balancing. Nature has handle animal listed and seems suitable for wagon driving to me (handle animal was used for wagon drigin in 3e), but not actual riding.
Surely you need knowledge about horses to ride one, but it's more good balance that keeps you in the saddle. You need pretty strong legs to so and guide the horse, too. So far my experience when sitting on a horse.
4e itself does not list ride in any of the descriptions for the htree skills (at least in the PHB).
What do you think?

I was just discussing with a friend, who plays the hereditary prince in my campaign and plans on organizing a knights tournament. And we stumbled upon the ride skill. Some rule ideas for such tournaments propose the nature skill, which I find pretty strange. I'd suggest athletics or acrobatics (especially when it comes to staying in saddle while jousting), because riding is definitely a physical activity that shurely also involes balancing. Nature has handle animal listed and seems suitable for wagon driving to me (handle animal was used for wagon drigin in 3e), but not actual riding.
Surely you need knowledge about horses to ride one, but it's more good balance that keeps you in the saddle. You need pretty strong legs to so and guide the horse, too. So far my experience when sitting on a horse.
4e itself does not list ride in any of the descriptions for the htree skills (at least in the PHB).
What do you think?