Jeff, FWIW...about 7-8 years ago, before Forrest offered blades for the Kapex, I called them & talked with Tony? about reboring the 2 each Forrest 10" blades I'd been using on Milwaukee sliders. He just flat out declined to rebore the blades and mentioned that there were issues with the outside diameter. That never made sense to me because there's only a 6 mm difference in blade diameter but he was emphatic about it.
Even now, they offer a 10" (254 mm) blade and a 260 mm Kapex blade. Both blades have the same amount of teeth, the same tooth profile and the same kerf. [tongue]