I'm no expert on splitter blades, but ... Since the blade is relatively thick, I would do a micro bevel until such time as it is getting too wide, then reshape the edge and apply a new micro bevel. Same as with many woodworking tools like planer, jointer, plane blades, etc.
It's a lot quicker to touch up the micro bevel and to strop it than having to work the whole surface each time.
CTG