Snapshot Question

By Underachiever599, in X-Wing

"After an enemy ship executes a maneuver, you may perform this attack against that ship. Attack : Attack 1 ship. You cannot modify your attack dice, and you cannot attack again this phase."

Italics and underlined the part I wanted to ask about. So, by my understanding, if another friendly ship were the one modifying the dice though one of their abilities, Snapshot could still get dice mods, yes? Say, for example, Vader has Snapshot for whatever reason, and gets his 2 dice at an opponent. Could you use Palpatine to modify it to give Vader a crit on his two attack dice? Or would Etahn A'baht's ability work to modify one of the hits to a crit in a similiar situation?

With palp I think it would be possible (omega leader as an example) although they may FaQ it when it's actually out to say no