consider what a difference such a simple thing as a "stirrup" would have in battle, I ride every now and then, and I can only imagine the difficulty in galloping on a horse with a blanket as a saddle and no stirrups! I imagine that in a charge, it would very likely lead to a fellow being thrown off his horse due to the forces involved and the lack of an effective means to hold on to the darn horse! imagine yourself charging into an enemy infantry formation, and with the force of the charge dissapated, you have been seperated from your fellow warriors and are now among the enemy infantry formation, how easy it would be for them to unhorse you and then when lying on the ground from the fall simpy stab/slash/bludgeon you to death with whatever they had around or near them... with stirrups, you would greatly frustrate any efforts to unhorse you due to your increased stability and leverage.
Then again, what do I know!
