Maledictions w/ No die roll required - is this legal?

[jeff_wilson]

Originally Posted by Rev. Pee Kitty

From GURPS Psionic Campaigns (p. 26):

Even resisted abilities may have this version of Cosmic. However, when using them, the psi must still roll against the controlling attribute (or skill) to determine his margin of success for the Quick Contest. If he fails the roll, the ability still works, but treat his margin of success as 0.

So, the user can decline to roll and just go with zero if he wants, right? And then the Fixed Duration takes over? And without Fixed Duration, for wanted afflictions the victim can still roll to beat their Will and get that much duration?