There is the activation time which is the time it takes before a skill takes effect, the moment of activation which is the time in which your skill actually does whatever it does, and the recovery time, which is the time it takes for your character to finish the casting animation and become able to do another action about
Guild Wars Gold. The moment of activation is obviously instantaneous, you can not make that instant any faster, and Fast Casting does not affect the recovery time at all only the activation time. Recovery time is usually appreciably large with a spell, though, at least very close to a full second while the activation time is much smaller about
Guild Wars Gold.
Fast Casting lets your spells take effect much sooner but it does not actually allow you to cast many more spells than the next caster so Mesmers will not be spending their energy much faster than other professions. However, they do have several tools to aid their energy management ¨C as well as to hamper others but that is a topic for elsewhere ¨C because Mesmers have several skills that let them steal or otherwise gain energy when used. This means Mesmers have ways other than regeneration of regaining their lost energy about
Guild Wars Gold.