Hmmm... I'm not familiar with that, griz. Slowmatch burns, well, slowly (well, it also crackles a bit as the niter is burned off). The more niter the cord is soaked in, the easier it lights (but it also burns faster). It will go out if it is pinched or stomped, but would be hard to extinguish by cutting off the air supply, as the niter is the oxidizer.