I would agree that under normal circumstances it would be easier to machine the incra down but I'm taking the saw to work for a few mods ie to make it mobile and its just as easy to put the table on the borer and machine the slots.Cast iron goes nowhere with machining,its all to do with the grain structure ,very stable!.
i've just thought of a plan for an adjustable width riving knife for a dado head,it should sort the kick back problem nicely as it only needs to protect the blade nearest the rip fence.
Comments anybody?
Chris