With AON checked, your order goes to the bottom of the heap. New orders that are not AON have priority over yours. I hate when they fill 297 shares of a 30,000 share order at .10, but that is just the risk you have to take to get in line. Personally, I never use AON.
#board-3073
Beware the Jabberwock, my son!
The jaws that bite, the claws that catch!
Beware the Jubjub bird, and shun
The frumious Bandersnatch!