YUMI IS BIGBOW? OK！ → 2SLOTS~~~ OK？？？？？
YUMI IS NOT Horseback archery Do you understand?
Actually it is debated:
As you can see the "handgrip" of the yumi bow is not centered in the middle but its lower, Some historians debate that the reason for that is that you can lift it easyer over the side of the horse (Switch from aiming left to right and vice versa). Because if it was centered it would be (almost) to long on the bottom.
Edit:
Wiki:
"The yumi is asymmetric; According to the All Nippon Kyudo Federation, the grip (nigiri) has to be positioned at about two thirds of the distance from the upper tip.
The upper and lower curves also differ. Several hypotheses have been offered for this asymmetric shape. Some believe it was designed for use on a horse, where the yumi could be moved from one side of the horse to the other with ease. However, the grip position had emerged before horseback archery became widespread in Japan.
Others claim that asymmetry was needed to enable shooting from a kneeling position. Yet another explanation is the characteristics of the wood from a time before laminating techniques. In case the bow is made from a single piece of wood, its modulus of elasticity is different between the part taken from the treetop side and the other side. A lower grip balances it.
The hand holding the yumi may also experience less vibration due to the grip being on a vibration node of the bow. A perfectly uniform pole has nodes at 1/4 and 3/4 of the way from the ends, or 1/2 if held taut at the ends – these positions will change significantly with shape and consistency of the bow material."
