The Proper Use of Gauss Barrel

[Daethanil]

GCD is 2s, Gauss Barrel cast time is also 2s. So 4s are used, one shot base (for example) 400 damage. GB gives +30% (30% of 400 = 120) total shot value 520.
Comparatively, 2 shots in 4s without GB. Each shot base 400 damage. 800 damage total.
How is maintaining a 100% uptime a DPS gain? Just due to the fact that our Split shot is such a minuscule percentage of our total damage (assuming random proc doesn't screw us)

[RiceisNice]

2.5 GCD with a 1.5 cast time. I don't follow your train of thought, but you have the wrong idea on how cast times work.

Your GCD starts ticking down at the start of cast, not when the cast finishes.

You can do 2 split shots in two GCDs (5 seconds) regardless of if you have GB on or not.

[Humorless]

GCD is 2s, Gauss Barrel cast time is also 2s. So 4s are used, one shot base (for example) 400 damage. GB gives +30% (30% of 400 = 120) total shot value 520.
Comparatively, 2 shots in 4s without GB. Each shot base 400 damage. 800 damage total.
How is maintaining a 100% uptime a DPS gain? Just due to the fact that our Split shot is such a minuscule percentage of our total damage (assuming random proc doesn't screw us)

......

:')