I think it'll be easier to explain this by posting an example of what I mean...

Additional Rainbow PUSH, Chicago, IL Spring 2012
Experience Intern - Phonebanked for the organization's

For those two previous lines, taken from my resume, I would like there to be NO vertical gap between "Additional" and "Experience", as well as no gap between "Rainbow PUSH" and "Intern". But when I make "Additional Experience" a larger font size, it creates an unwanted gap between "Rainbow PUSH, and "Intern". Is there any way to prevent this?

If you don't understand what I mean/what the problem is, I'll try to clarify. Thanks.