Revealing the dial cannot be a trigger for advanced sensors, period. If you ever reached the trigger, that is if you reveal your dial, you cannot then use advanced sensors because you were required to use them before revealing the dial. There is no possible way to make that have any logical consistency.
Earlier, the argument that held the general consensus was that there needed to at least be some intent to reveal a dial, some potential for dial revelation. Performing an action (Advanced Sensors) before something that you knew without a doubt was not going to happen seemed abusive to most, including myself. That is the reason we arrived at the consensus opinion, because the RaW cannot under operate with "Reveal a Maneuver" as a trigger under any sort of rigorous sequential execution.
By definition a "prerequisite" cannot occur after the action, that is called a non-sequitur for a very good reason.
Edit: Which is why writers should strive towards consistent wording and defined words. Had they simply worded Advanced Sensors in exactly the same way they worded Bomb drops, "When you reveal" as opposed to "Before you reveal" we would have wound up with identical functionality but clear precedent based on the rules for bombs. As it is, their inconsistency has made what ought to be a straightforward action much more complicated than it needs to be.
Oooh - let's call it a postrequisite.