I understand what Cliff is saying about using the handcut bokken and jo in regular training, but then again, what were they made for? If I ever wear these out, I will replace them with exactly the same thing and use them regularly. They are works of art but are most beautiful when being used.
I know, I know. But long before they wear out completely, you are likely going to have to sand out some dents and re-apply a finish to them; that turns them into the sanded model anyways, you just spent $100 more for it.
In all seriousness I think the hand-cut bokken are great for sitting under the shomen for the instructor to pick up and demonstrate something during class.
Now, if you don't mind spending a lot of money on a bokken and actually intend to use it for a lot of rough practice, then you should drop Kingfisher an email and ask them about the enhanced hickory practice weapons.