Switching branches after DEPing in?

I swore into DEP about 3 weeks ago with the army for ATC (15Q). This was my first choice MOS and at first it wasn't available. I managed to take over another recruits spot so I filled a permenant spot instead of a temporary. I have everything locked down and am set to leave May 12. I made it known to my recruiter that I was still looking into the Air Force and he said that it was not a problem to switch branches after DEPing in, and that in fact it would make it easier for the Air Force because I have already obtained my secret security clearance and ped the physical and all that so they could already know that I was qualified. I was told it was just a matter of transferring my packet from the Army to the Air Force. The reason I did the initial swear in with the Army was because like I said I filled another recruits spot and I had to take it before anyone else did otherwise it could be towards the end of the year that another 15Q opened up. I know I am going to catch slack from a lot of you about swearing into DEP with the Army when I was still considering the Air Force, but just go with it I trust my recruiter and what he told me. I am going down to the USAF recruiter tomorrow to see whats up with switching to CCT for the USAF, per my Army recruiters advice. I'll find out then but I just wanted to catch some outside feedback about the whole process and if anyone has heard of/experienced this before. I've been looking it up online and people say you have to be discharged from DEP and start the enlistment progress all over again to switch branches but this is not what my Army recruiter told me and he is a very knowleadgable and respectful guy that's been looking out for me. Do any of you think this is not the case? Get back to me... Thanks in advance!