[quote=@BangoSkank]
I like to ask questions.  So I want to preface this by saying I like superhero RPs and this seems like a fun idea.  Tons of folks here like Superhero RPs and a good dozen at least are well in to OC Superhero RPs.

That said, it might help to flesh things out a bit more.[/quote]
I like to answer questions :)

[quote]Is this a Modern Age type setting or like 1950s or Future?[/quote]
I was thinking to leave this somewhat obscure. Leaning near future with sci-fi elements.

[quote]How did Jefferson (is that a first or last name?) find out about these people?[/quote]
First name. Think of him as the computer genius who hacks into surveillance coms and gov records to narrow down his search. Or it could simply be from more simple relations with the characters who were directly affected by the criminals of the city, a hook for him to leverage their willingness to join. I am leaving this for the role-players to decide or brainstorm with me. 

[quote]With superpowers being unknown to the world at large and superheroes being non-existent, it would seem, what are you imagining for villains?[/quote]
Inspiration can be derived from Kingpin for example, but also, having illegal tech out there leaves a lot to imagine with exo-suits, freeze-guns, or whatever outlandish idea we can come up with. I have not come up with the entire criminal enterprise yet, though I do have some solid ideas. 

[quote]What sort of genre are you going for?
You say Old School Costumed Adventure with Skin Tight Suits, but also crime, grime, corruption, and custom superhero suits and weapons.  Are you thinking like 1960s/70s Batman Camp (think Adam West Batman and that weird Robin) or the 90s Batman the Animated Series (think Noire with a lot of Mafia villains and troubled villains) or like Spiderman/X-Men sort of more Standard Issue Comic Book stuff.  Or hell something like Marvel Knights which is closer to Grim Dark (think more violent, more killing, more twisted villains and drug use or other adult stuff)[/quote]
By these examples alone, probably a mix of Spiderman/X-Men and Marvel Knights. Leaning on the adult stuff with Mafia villains and troubled villains, but focusing on the theme of comic book superheroes coming to real-life, the public's reaction to them. The idea is to explore the culture shock that this would bring - and hopefully eventually reach a storyline where they become a permeant part of this world's culture. The best example I think would be the KickAss series.