-That is exactly what I said... You can't run 50 straight miles at top speed the entire time. They have their limits which is the whole reason why they have set durations for how long they can keep on their masks. Each Vizards limit is different which shows it's based on their own individual proficiency. This does not mean they don't have control over it. They do, which is how they're able to use it in the first place.-what i mean is that they can't keep using the mask on a fight and will be forced to remove their mask because the can't keep it up anymore
-it is matter LOL, since aizen hogyouku is incomplete, he even stated that he need kisuke hogyoku to fuse it into his own
-No, it doesn't matter. The Vizard have learned to control the power given to them. They have mastered their powers. Whatever the Hogyoku gave them at the time is what they've mastered