I like kosher salt, but you could really just use regular table salt. My Oil Sprayer is a lecithin free, home-made, version.
**Update. Every oven is different, so time will vary. If yours aren't crisp after 10 minutes, bake longer. They should be a deep golden color. Hope that helps. Also eat them while still warm. They are intended to be eaten right away, and will not stay crispy overnight.