I have a project to make kitchen knife holder. My workpiece is a 6" block of tulip wood which is quartersawn. Since it is quarter sawn out of a tree that looks like it was about 14" in diameter, the grain runs diagonally through the block in quarter circle arcs.
The traditional way to divide the block is to split it, but my concern is that since the grain is in an arc, I will not get a plane split. Is there a procedure for making a split perfectly flat and straight?