Heat treating 416 will increase it's "stainless factory", but like everything else we do in Bladesmithing...there's a "Give-N-Take".  What is it?  The pins.  If you heat treat bolsters, but not the pin material, the pins will stick out like a sore thumb.   On the other hand, if you heat treat the pins, it makes peening them, and blending them in very difficult.     So in this case, it's a "Pick your poison" kinda thing.   😉