Quote Originally Posted by UBERHAXED View Post
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Even with the 1 second lead, that's only enough for 1 oGCD ability which can reset its cooldown, along side other oGCD abilties. Fire I animation completes as soon as the fireball hits, or if you used an oGCD like a buff, tranpose or an instant cast thunder. The latter doesn't apply to heavy shot's proc. You will still hard cast a straight shot even if you got the buff from the previous one until you wait one second after the GCD from using heavy shot ends.

Straighter shot does not pop immediately until heavy shot's animation ends, but that happpens after the GCD finishes because the animation does not start until after the 1.5 second cast, nor does using an oGCd to cancel heavy shot's animation work.