Hover Dragon Feat - how long to create a debris cloud?

[Liminal Syzygy]

The Hover feat for Dragons from the SRD:

When flying, a dragon can halt its forward motion and hover in place, fly straight down, or fly straight up regardless of its maneuverability. While hovering, it can attack with its bite and all four feet (its hind feet deal claw damage) and can make tail slap attacks if normally allowed to do so. If it can make a tail sweep, it can do so while hovering but can make no other attacks. A hovering dragon cannot make wing attacks. It can use its breath weapon instead of making physical attacks. If a dragon hovers close to the ground in an area with lots of loose debris, the draft from its wings creates a hemispherical cloud with a radius of 30 feet x the dragon’s age category. The winds so generated can snuff torches, small campfires, exposed lanterns, and other small, open flames of nonmagical origin. The cloud obscures vision, and creatures caught within are blinded while inside and for 1 round after emerging. Those caught in the cloud must succeed at a Concentration check (DC 10 + 1/2 dragon’s HD) to cast a spell.

How much (long) does the dragon need to hover to create the cloud of debris?

By strict interpretation of this feat, a dragon with 150' fly and poor maneuverability (meaning it's minimum speed is 75') is "hovering" as long as it flies less than 75' in a move equivalent action. As long as this hover is done close to the ground, is it reasonable to assume it could move 70' and then create the debris cloud?

 

[Caliban]

The Hover feat for Dragons from the SRD:



How much (long) does the dragon need to hover to create the cloud of debris?

By strict interpretation of this feat, a dragon with 150' fly and poor maneuverability (meaning it's minimum speed is 75') is "hovering" as long as it flies less than 75' in a move equivalent action. As long as this hover is done close to the ground, is it reasonable to assume it could move 70' and then create the debris cloud?

I ruled that to create the debris cloud the dragon actually has to spend a full Move action hovering, not just part of a move.

If it has a move of 75' it could choose to move up to 75' and then Hover for it's second move action (instead of taking a standard action). It could not raise a debris cloud by moving 70' and "spending" the remaining 5' of movement hovering. (It might raise some debris, but it wouldn't be enough to blind anyone.)