Avoid acacia, it's too hard on the knife.
Also, how much space do you have? If you can accomodate it I'd go for the medium 500mm size in choice
Still wondering what kind of steel?
You probably have a stone I would trade the Shige for...
"the k-tip had its tip broken so it will probably be missing for a bit until its fixed"
Of course it did.... That is the very