I haven't tried the new but I love the old. FWIW I also have the Survival Spark from TAD (all brass) and a couple of the aluminum versions of the Spark-Lite. All of them work well. The square shaft of the latter is easier to grip than the round shaft of the TAD.
The big advantage of this type of device is that it uses only one hand. Thus you can use the other to position tinder or block the wind. The Blast Match is also good but bulkier and more expensive. No matter what else I carry I also have a Firesteel on me, too.
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman