One of the issues I've dealt with most of my motor testing was a relatively slow ignition time. This was caused by the necessary build up in pressure before enough hot gass propagated through the case and the motor achieved full ignition.

To enable faster ignition I needed both an ignition source and pressure source. To that end I've built a new igniter:

It successfully gives me that instant on ignition that had been eluding me.

Here's an example of an old finocyl bored grain being ignited with the previous method: