You gain X% of your mana every 3 sec while under the effect of Rapid Fire, and you gain Y% of your mana every 2 sec for 6 sec when you gain Rapid Killing.
You gain X% of your mana every 3 sec while under the effect of Rapid Fire, and you gain Y% of your mana every 2 sec for 6 sec when you gain Rapid Killing.
Rapid Recuperation is a passive hunter talent found in the Marksmanship tree. It causes you to regain up to 20% of your maximum mana every time you use Rapid Fire. In addition, it causes you to regain up to 6% of your maximum mana every time you kill a worthy target if you have at least one point in the Rapid Killing talent.
The mana regeneration effect triggered by Rapid Killing is separate from the bonus damage buff granted by that talent. You will still gain the full amount of mana even if you use up the buff right away. This talent only requires a single point in the Rapid Killing talent to grant the full amount of mana when you kill a target.
This talent is very useful when leveling or grinding to gain extra mana from Rapid Killing every time you kill a target. It also allows you to use Rapid Fire as a miniature Innervate every time it is off cooldown to replenish your mana even when you do not need the attack speed increase.
Using Readiness to reset the cooldown of Rapid Fire just as it expires will allow you to use Rapid Fire twice in a row, effectively doubling the value of this talent.
If you also have the Rapid Killing talent, you can use Kill Shot or other high-damage shots to try to land the killing blow on enemies when in groups, granting you some extra mana.
Hotfix (2009-04-16): "Improved Aspect of the Hawk should no longer allow Rapid Regeneration (sic) to provide additional mana beyond the intended scope of the ability. [1]"
Patch 3.1.0 (2009-04-14): Redesigned: You gain 2/4% of your mana every 3 seconds while under the effect of Rapid Fire, and you gain 1/2% of your mana every 2 seconds for 6 seconds when you gain Rapid Killing.
Edit
Hotfix (2009-04-16): "Improved Aspect of the Hawk should no longer allow Rapid Regeneration (sic) to provide additional mana beyond the intended scope of the ability. [1]" 
Patch 3.1.0 (2009-04-14): Redesigned: You gain 2/4% of your mana every 3 seconds while under the effect of Rapid Fire, and you gain 1/2% of your mana every 2 seconds for 6 seconds when you gain Rapid Killing. 
Bornakk 2009-04-16. Recent In-Game Fixes - 4/16/09. Retrieved on 2009-05-24.
