Forums of the Megaverse®

One of the bonuses granted from the Flight: wingless power is +40 to S.D.C.
Normally when abilities give S.D.C. is added right into the characters S.D.C. total. However this power states that the character has to hover/fly to use full bonuses. Is that the case with the +40 S.D.C.?

Yes, the +40 S.D.C. bonus from Flight: Wingless likely only applies while hovering/flying.

The wording suggests the character gains some inherent toughness, but the full benefit is conditional on actively using the flight ability.

Yes, that is why the bonus is listed as part of the Bonuses In Flight.