In my range sessions with the .54 GP, I've been gradually reducing the amount of powder I put in the pan to see what happens. What I've found is that it takes very little powder to get reliable ignition. In fact, I get the fastest ignition with the smaller amount. The picture shows how much FFg I was using in the pan for the last ten loads in my last range session. Every shot went off, and (I believe) just about as fast as a caplock.