User blog comment:B214/Volume 17 spoilers./@comment-72.174.16.60-20140611074407/@comment-24502975-20140611182657

Pretty sure Code-Zero (the translator) meant to write 'ability' not actual power.

As jop said, CCQ's full power has yet to be unleashed - it isn't perfected, but can be used for longer periods of time. EJOD's full power is unleashed but the time limit is a lot lower. Obviously, for Ise to use perfect CCQ as long as he uses CCQ now, he'll need to build up his stamina (and conserve stamina, as shown in Life. 1). And for Vali to use EJOD longer, he'll need to build up more stamina through training as well. Not sure if he could conserve any though.