The firecards work well. Essentially similar idea to Spark Lite Tinder Quik, different form factor. They have both advantages and disadvantages compared with the Tinder Quik. How you pack stuff and carry it is more the determining factor than performance. I do find that the Tinder Quik is quicker and easier to fluff up and get ready to accept a spark. One reason I prefer it for my kits. Plus, Tinder Quilk is easier to find and typically less expensive.