The CRI spec as it is usually used tells you very little about the actual color performance of a light. I recommend you take CRI numbers only as the roughest guidelines (for example 70 is too low to waste your time, 85 might be worth testing) and test thoroughly with the camera and other lighting instruments you plan to shoot with.
High CRI lights can still be extremely deficient in particularly critical portions of the color spectrum, and low CRI lights can sometimes be good enough for certain situations. Also, any CRI light is still likely to need some green/magenta correction... the filtration might be more likely to have the desired effect in higher CRI lights, but it depends what the spectral output looks like...