Oh! That's why they were talking about eating just one rune sometimes. Perfect, that makes more sense to me now.
One question tho, while we're here. The actual speed of the animation time of the CA is affected by the amount of runes and any penalties, correct? So having a CA with just one rune you'll see the character execute the skill extremely fast and also have a low cool down?
Well luckily I found some sweet Regen per hit and have socketed my armor up, so I can cover up my booboos for now.