My involved with SSK Japan has provided knowledge. The 1st "bamboo" bat was designed by SSK to teach the HS hitters to concentrate on the "sweet" spot. If you hit the ball off the 2 " sweet spot the bat stringed.
Now Robert my son son sells the SSK to the MLB players including Robinson Cano.
We carry 4 dozen with our teams for our trip to Australia.
The SSK fungo is preferred by all pro scouts and ML coaches. Why?