This morning I used a ferrocium rod to light some tinder piles. I used two knives as strikers, one a normal carbon steel Mora and another knife, marked stainless. I did get fire with both, though I think the Mora threw hotter sparks. It certainly was a brighter flash, not as yellow as the stainless blade. The back of the blade is squared off, not rounded. I don't know what brand the stainless blade is, it looks like a cheap import. The only thing I can think of is what is the stainless blade's alloy? Would that make a difference? I'm pretty sure stainless has carbon in it. Unless I'm mistaken, without carbon it's not 'steel.' I've heard of high carbon stainless. Is there low carbon stainless? Is carbon even necessary? I didn't have any other stainless blades. I guess I'm going to have to buy some stainless Moras, just to try this again.