http://www.silkysaws.com/Silky_Saws/Wood-Working-Saws/KATANABOY-with-500-extra-large-teeth500mm, it is in the mail. The 360mm Bigboy just won't cut 16" sticks with ease.
What are you cutting? Will you use the rip blade and how much will you use it?
I really wouldn't feel comfortable using any thing shorter than the 360mm blade for general timber work, a lot of 9"x stock up to 12 inches seem well suited. But bigger stuff....?
I like to see the blade cut all the way across the stick, to gauge the depth of the cut.
Other opinions abound.