08 Mar 2005 at 01:08 - 4
Attack skills such as Pin Down or Power Attack require an attack- so rather than being used instantly, they take the form of your attack- with a 1.8 second time to get off. If you use Pin Down and follow with Power Attack, the Pin Down will take 1.8 seconds, and then the Power Attack will follow 1.8 seconds later.
There are some skills that have faster animations, which won't take an entire 1.8 seconds to use. Quick Shot and Concussion Shot come to mind- those will go off nearly instantly, so long as you're not currently in the animation for using a different skill. As for your question, I think Savage Shot takes quite a bit less than a normal attack- it has a quick animation. However, it can be difficult to use, as it goes off on your next attack, rather than interrupting your current shot like Concussion Shot will.