1.3 Tracer with 1.5 GCD... Wasteful
Even if it reduced the GCD, Alacrity would still be useless.
We are constrained by resources, not time. Alacrity will not increase the amount of abilities you cast over a period of time, it will only increase the number of auto attacks (rapid shot)
Alacrity needs to increase energy/heat/force regeneration, like Haste does in WoW for rogue energy, DK runes, etc