Re: what little action occurs
There isn't much action. There is little action. That little bit of action is repeated. What little action there is = all the action, even though there is very little of it.
We don't have much milk left, but add what little there is to the muffin mix, please.
I don't have much money, but you are welcome to what little there is. What little there is should prove to be enough.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.