Well as I said, we'll have to wait and see what will happen. I sincerely doubt they will completely lower the Skillspeed thresholds, as it appears they've done it on purpose. And who knows? Skillspeed might actually scale DoT damage very well, making that 2.4 threshold very favourable.
It is actually possible to get 3 GKs in and not miss any BotD application and to sustain HT + PH uptime 100% with 2.5GCD, if my model is correct... but it's A LOT harder to play as you get 0.1s leeway not to be hit by latency, mechanics, or GCD clipping, compared to 1.1s, plus GK management is A LOT more complicated and harsher than necessary.
Having said that, the rotation seems to be a lot more smoother with a GCD of 2.4 and it's very likely the development team have created the rotation with this number in mind, that's what I'm trying to say.
