Given this match debate, I thought "Hey, sparklites are pretty reliable, not too affected by water, and don't need anything special" so I added another Tinderquick (total of 6).
That should do it. Just remember to dry it out nice and good if it should ever get wet.
The extra stuff I added made an already tight fit quite a squeeze, but I was able to get the latch closed with a little bit of effort. Is there any record of those latches failing?
Yeah it will hold. <img src="/images/graemlins/grin.gif" alt="" /> Mine has been packed to the brim with no failures. <img src="/images/graemlins/grin.gif" alt="" />
BTW I replyed to your PM.