[@Jasonhero]

Okay, I just updated the CS. 

I will make an argument for the Flashbang genjutsu against the Byakugan through; Yes, the Byakugan can easily detect that it is a Genjutsu... but if they are the target for it that is still a lot of chakra aiming for their eyes with the intention of making it feel like they are being burned out. It's still going to hurt like hell until they purge their charka system... even more so if they try to keep their eyes open.

Edit: To his credit, Tsuyoi would be on good terms with Ryu. He would be on good terms with anyone who doesn't actively reject his company.