There was an interesting question at the Armada wiki. What if you exhaust your Phylon Q7 and then ready it again (same timing) with Interdictor-title: Could you use your Phylon again. I'm quite sure you can't because of page 5 of RRG: "A “when” effect occurs at the moment that the specified event occurs and cannot occur again for that instance of the event."
On the other hand that means Phylon Q7 that can only be used "When you activate, ..." could never be reused even if they wouldn't have to be exhausted. For that I ask:
Why do you have to exhaust "Phylon Q7 Tractor Beams" at all? Is it just like using a belt and a pair of suspenders to hold your pants? Or is there any meaning behind it I don't see? Or am I wrong and you could use Phylon Q7 twice a round, if you ready the card with Interdictor-title?