And the point of proving you can kill an animal is? Unless you are eating it and using all the parts of it why kill something?
There are lots of other motivations for hunting besides simply providing what can be harvested from the animal. I use my turkey hunts to scout for my elk hunts-I also use a bow for turkey hunts because it's more challenging. Likewise, while I'll occasionally take a turkey because I can use the meat and provide feathers for people who have a use for them, I really prefer domestic turkey to wild turkey, so I raise a couple every year. On the other hand, turkeys are pretty wily, so most years I get humbled-outsmarted by something with a brain a little bit smaller than the tip of my pinkie.....:lfao:
I fashioned an atlatl long ago, and darts made of stainless steel tubing. I was younger, faster and had a little more -stamina, and wanted to try it out on elk-it required the use of altogether different skill sets from a bow or muzzleloader for a successful hunt, and presented different challenges.
I can see that if Dan's going to hunt bear, he's looking to make it more challenging-I get that-it's one of the reasons why I'll bowhunt or use a muzzleloader (though I prefer the muzzleloader for elk because of the heavy .50 caliber ball)-I don't see that a Japanese bow is any more challenging than a western recurve or longbow, except in the unfamiliarity of the weapon, which is pretty foolish with an animal like a brown bear.
That's the thing... with the design of a Japanese bow (with two-thirds above your hand, and one third underneath, as well as the construction materials and so on) mean that comparisons with Western bows draw-strength doesn't actually mean much. The Japanese bow is designed to generate greater power with lower actual draw-power required.
Physics wise, this isn't true, and archery-Japanese or western-comes down to physics. Yumi-the modern versions of the "classical Japanese bow," anyway-come in a variety of draw weights, starting at about 30 lbs. It's because of the Japanese draw that arrows are personalized-the draw actually ends behind the ear, and arrows have to be quite long for some people0it's for this reason that "draw weight" is a little more flexible for yumi-the draw is typically quantified as "between
x and y lbs. at z inches.. In any case, higher draw weight means greater exit velocity, and kinetic energy, and this is what ultimately equates with "power," nothing more-you can't "generate greater power with lower actual draw power required"-that's physically impossible. This is, of course, all affected by draw length-the longer Japanese bow, and longer arrow and draw, means that there is a bigger drop off in velocity at higher draw weights-they're actually less efficient in generating speed and power than a recurve, but, because of all those things-the shape, length and draw length, they are actually conducive to more efficiency in releasing the arrow and hitting the target.
In kyudo,though, there are a variety of draw weights used, and the heavier draw weights launch the arrows faster, it's as simple as that.
In any case, the lightest of Japanese bows has around a 22-25 lbs. draw weight, which might not be legal for bear hunting-I think Alaska requires a peak draw weight of 50lbs. for brown bear, and, while I think it would actually be easier to draw a yumi with such a draw weight than a standard western recurve or longbow, it wouldn't be a simple matter-nor, I might add, would traipsing around in the field with a bow seven feet long and arrows that would be a little over three feet long -if you're anywhere near my size.....