The difference between soul reaper half hollow and Vizard is that Vizards have control under their hollow powers while soul reapers half hollow do not. What this means is that if you a Vizard you have control and power of your hollow power but you are an enemy to the soul society.Soul Reapers half hollow do not have control over they're hollow side and there for are not an enemy to the soul society.
To use you your hollow inside you while fighting as a Soul Reaper half hollow you must have made at least 10 posts/replies to the fight and you must be near death while Vizards can release they're hollow side anytime.
They're are some down and ups on both sides but I thought I would just clarify that with you.
