... it was able to inflict stress on ships that already had a stress token? It seem to me that the ships that the stress from the Flechette Cannon would be most useful against are the very ships that are immune to it. A stress weapon that can't effect PTL and EI ships seems a bit useless to me.
If the Flechette Cannon was just the stress version of the Ion Cannon would it be under-costed at 2 points? Am I missing something about the Flechette Cannon that makes it worth taking over other cannons?