There are different materials in some fero rods. There is a softer material going round which is a little harder to strike and which throws molten globules (goinggear.com)
Then there is the harder variety which throw just a bunch of sparks. (swedish firesteel, blastmatch, and strikeforce.
Personaly I would put one of the swedish firesteels in and get one of the others from goinggear. Then go out and experiment with both and see which type works better for you.
Ypou can buy tinderquick tabs as tinder or make up some cottonballs loaded with petroleum jelly for the same purpose.