I have carbon steel, laminated, and stainless. They all exhibit lousy sparking performance. I suppose it is because they aren't hardened enough. The edge on the laminate would probably work the best, it's advertised as a high carbon core at 60/61 HRC.

I guess the point is that I shouldn't have to use (and ruin) the edge, when there are so many other knives out there with a properly hardened spine that will absolutely bathe you in sparks. I like my Moras for kitchen, garden, and around the house tasks, but no way I would trust one for survival.