Curing weakening, restriction, and curse.

[Goseki]

So i noticed cure therapy, big green circle, cures up to lvl 3 on the first book lvl 1. Force cure cures lvl 3 on the 2nd book. Now i use to notice that if i used cure therapy, effects like dull would go away or at least be reduced. Now it's not working anymore. Unlike force cure, cure therapy can't be spammed back to back until the effects are gone. So i'm asking. If i have say dull lvl 9 or some restriction, weakening, curse lvl 9 or so placed on me, and my cure therapy or force cure only treats up to lvl 3, will it be reduced? If i get force cure can i spam it until it's gone? Or will both not have any effect since lvl 3 can't treat a lvl 9, or will the lvl 9 drop down to the time effect of a lvl 6.

[JKMB]

I'v also got some basic force skills, and from what i'v noted it reduces the time of the effect, in the case of frostbite, burn or shock untill it ends, but as for bleed and dull, it seems that you have a random chance that the effect will be cured when you use it, but perhaps a person with force higher then lvl30 could provide a better anwser.