FWIW, and that's probably not much, the aluminum arrow shaft striker with stabilized black palm tip is the most consistent striker I have for any calling service.

When I was in college I worked at an outdoor store and we had Mr. Harold's strikers on display. We had almost 200 strikers at any given time. The black palm striker was the most versatile out of them all. Andy (Nitro) and I argue back and forth about this all the time, but from my experience with fowler strikers, they are the go to.