Jim, I am with you on the MicroRocket finer points and also the non-value of the separate ignition as I just can't see it being very useful for most who already carry a lighter etc.
Yeah, I'm not sure what they were thinking there on the ignition. Just give me a doggone firesteel. 100X more reliable, particularly at higher altitudes where piezoelectric ignitions tend to fail, especially in cold weather. Not sure who thought this brilliant little gem up. Maybe I'm missing something, but it seems like a really dumb idea to me.
HJ