There seems to be a lot of interest in the idea of dual cards as a way to implement S-foils in the game for X- and B-wings (and future ships, who knows). The U-wing seems to point that way.
So here's a proposal for some S-foils dual cards ... critique or add your own.
(1) Variable Geometry Strike Foils (Modification, 2 points, X- or B-wing only)
(front) Action: Perform a free [boost] or [barrel roll]] action. You may not perform additional actions this turn. After you perform this action, flip this card over.
(rear) When attacking, roll one additional attack die. After you perform an attack, flip this card over.
(2) Strike Foils (Modification, 3 points, X- or B-wing only)
(front) Cruise Position: Reduce your attack value by one and increase your defense value by one. Action: Flip this card over.
(rear) Attack Position: Increase your attack value by one and decrease your defense value by one. Action: Flip this card over.