Ok, so your saying the flipping of the dial triggers the "before you reveal the dial" abilities? So if I assign a red maneuver to a phantom with PTL and Advanced sensors, I'll reveal my dial perform advance sensors, do a second action receive a stress, then do the red maneuver and a second stress? My opponent would not get the chance to pick my dial in this case as the trigger for that is when I reveal my dial. That seems really odd!
You still perform everything in the given order. The way I think about this is that "reveal the dial" is the trigger, and words like "before", "after", and "when" tell you the order to resolve the ability relative to the trigger. So basically with a "before" when you would reveal your dial, you first do the ability.
In this case, you'd do your Advanced Sensors+PtL to take two actions, and give you a stress. You then reveal the red maneuver, which triggers the "opponent gets to pick your dial" penalty.
It can certainly feel a little paradox-y... "How can I do something that relies on me revealing my dial before I actually reveal my dial?" But it seems pretty clear that's how they intend it to work.
Wait a sec... are you RAI not RAW?..... I think the world may explode!
Also I would be firmly against the double-decloak. I think it is relatively sensible to assume you get to decloak only once before revealing your dial even if your action was to cloak.
Also I am now quite interested in seeing the Phantom's dial. I think we will see that it is quite a slow ship a bit like the HWK. i.e. Max forward of a 3. Mostly to prevent it being abusively fast around the board - a Phantom with a forward 4 and engine upgrade could move the equivalent of a 9 forward on decloaking.