My saw blade was not locking well. The knife locked a champ though. Because I use the back of the saw for the ferro rod this was getting frustrating. Anyways, I used the bits from the bit kit to take the saw blade off and then Just used my knife sharpener to grind the part of the saw that engages with the lock just a bit and now it locks super good. This should make the ferro rod scraping go much better.
Photo shows great engagement. I wish I took a before picture.