So, the big things I'd like to changes are this;
Lose Flawless Stride; Gain Aerial Ace (Ex) instead; Improves Flight Maneuverability by 1 step, can move through any sort of airborne hazard(such as netting, vines, or strong wind) that slows movement at her normal speed and without taking damage or suffering any other impairment. This ability does not let her move more quickly through terrain that slows movement or requires a Climb or Swim check to navigate if she is not airborne, nor can she move more quickly through terrain or hazards that has been magically manipulated to impede motion. She loses this benefit when wearing medium or heavy armor or when carrying a medium or heavy load.
I also don't like Trackless Step, but I don't know what kind of ability I'd replace it with. One that increases skirmish range(Skyborne Hunter? Death From Above?)? One that has to do with gliding(Ride the Winds?)? A bonus feat? Something relating to stealth whilst flying?
Also, Leo, that's good mechanically, but don't forget that it talks about Ineffective Weapons and Vulnerability to Certain Attacks. Also that breaking it doesn't mean blowing it into bits, there's logistical issues with a battle axe versus a wood chopping axe, etc. etc.
For example, a battle axe is gonna get dull a hell of a lot faster than a wood chopping axe when chopping wood. Just as a wood chopping axe is going to be far less wieldy than a battle axe in combat. They're made differently, even if going by pure mechanics it works the same. But it's not pure mechanics, of course.
So yes, it requires DM judgement. Or player judgement when the players aren't being rules lawyers. >.>
Fakeedit: Nerjin, there is such a thing as pragmatic evil. And insane =/= evil. Just similar.