Am I Going To Be Happy With This Camshaft?

My machine shop/engine builder guy showed me an Isky catalog from the seventies that had a "lifetime guarantee" camshaft that had "hardfaced overlay lobes." It looked like the lobe was carbided from just past the clearance ramps to over the nose. I wonder if those may be a special Isky lifter that was purpose hardened to run with that type of cam?