Originally Posted by
Serene
Where's your maths to prove this point, sorry?
If, by casting a second rune you are minimizing downtime when not moving and can start DPSing upon arrival in the new Rune, how exactly are you losing DPS? Just make sure you're not casting the second Rune @ ~92%+ mana so you don't cap out and it's not a full waste of the buff? Sure you're not DPSing but you're still not "wasting" the Rune buff so it's not a complete loss; it's better than consuming your mana in cycles until you have to move, then re-casting your new Rune once you're in position, because then when you're casting the new Rune you're not gaining anything, you're simply losing.
Even if it is a DPS loss to cast 2, it's definitely not 2-3%, if anything it's so minor if you're actually going to move in between the two it's not really worth thinking about. For 2 GCDs you're given free movement now within a fair amount of space for 1 minute - Invocation only differs by allowing more range of movement, not necessarily travelling further - because if you have to move 32 yards that suddenly; unless it's planning you're doing something wrong anyway.