RPM Cost for 1 second casting time?

[Prince Charon]

Originally Posted by Ghostdancer

You could probably treat it as such.

Ah. I've been just adding another level to Time for each (so, two levels of Path/Book Adept (Time) to reduce Effect Shaping, and three levels for Energy Accumulating). This is rather more expensive, so I'll have to think about whether I want to do this in my settings. How generally firm is this rule (as in, how unbalancing is it to have the cost at ten points, instead of thirty)?