[quote=@The Kid Lantern]
[@TheUnknowable] Photon needs a new sponsor since Doc Light is a villain. I liked the adopting a young Chinese girl but that'll make moving to Star City tough. You could say Pho was the adopted brother of the heroic female Dr. Light and just used his powers in a less heroic way until being drafted into the YJ Program. Or something, IDK...

The Atom is a bit of a tech guy and could've made the suit. Possibly Mr. Terrific if you wanna say he's in the future League. Cyborg is another option. 

~KL~
[/quote]

I was going to have him switch sides, but I guess he'll still need a hero to sponsor him for the team.  I could have Cyborg study him and his tech and offer to sponsor him.  With the stealth angle, though, I think Nightwing would be a better sponsor.