Haste can really mess up a Dragoon. Normally we'd be able to use Geirskogul after our 5th T4, and have BotD up between our next Vorpal Thrust > Full Thrust. Getting things like arrow can actually screw us up with our CD timers, so by the time you finish Vorpal Thrust, BotD won't be available. I've also noticed things like Blood for Blood no longer coming off cooldown before Chaos Thrust due to my GCD being too quick.