9V alkaline batteries absolutely cannot supply 13.7a. How did you measure that?
In any case, I'm not a fan of using 9V alkaline batteries for launch power. Almost anything else is better, e.g.:
- 6 x 1.5V batteries (a la PSII controller)
- 9V lithium rechargeables (insanely more powerful (current-wise) than alkalines). Just one of these should be more than enough for a day of launching, and it's easy enough to bring a spare or two with you just in case.
- LiPo pack. Best of all, if you're willing to deal with the vagaries of LiPo maintenance.
Any of the above should be able to handle a pretty wide variety of igniters reliably (except maybe copperheads, which I think would be happiest with the LiPo.)
Anyway, when I hear of a QuestJet refusing to fire that would be my first thought.