Yep, joined the AF reserves right off the street with no active duty experience, so yeah, it's possible. You are going to need to talk to a reserve recruiter, and he's going to need to be an officer recruiter. Baseops.net has all the info you need to get started i'm sure. As for "setting you back 2-3 years", i'm not sure what that means.... if you are concerned about being set back from being the gear jerker in an RJ making 17K a year, then this whole military thing probably isn't for you.