Titan issues that need addressing.

[seekified]

Castbar tells you the former. It gives you absolutely no indication of the latter.

You can infer your required positioning by estimating how much is left of the cast. The telegraph will go up within fractions of a second of the castbar and you know you need to be off the telegraph by the time the cast completes. The problems arise when your view of the game is significantly behind the server, but I do agree that what's referred to as "the lull" shouldn't exist. That pause slows down gameplay and feels unnecessary.

I have to say I've never had problems with this. If my character is off a telegraph by the time it vanishes, I don't get hit.

EDIT: I think tightening up this system would be fantastic and would make battles feel more responsive, but I also think it can be a pretty dangerous thing to change a basic part of the battle system after two years.