Well, it is cold and dry up here in Canada, and I have been noticing an issue with my combustion launcher lately. I use a piezoelectric grill igniter as an ignition source, and it hasnt been working properly in the dry air. The current produced by the igniter will not jump my spark gaps, unless I blow into the chamber, effectively increasing the humidity a fair amount. When I do this, an arc occurs on every attempt, and this condition will maintain for upwards of 20 seconds, until the moist air is displaced by dry air. Has anyone else had a similar experience, and does my theory involving humidity sound like a plausible expanation as to what is occuring?