I got selected last year, street to seat, and on xmas break from WOCS. Go to the board or your batallion interview. They asked for my 1st class medical, if I didn't pass that then it was kindda pointless for them to interview me. Then your packet gets pushed up the chain. Your recruiter should only have to submit your packet before the deadline for the board. You should not have to physically pass through any more boards, but your packet will. That's what happened with me, but I was originally told I might need to fly for a secondary board, it's just miscommunication. Unless stated otherwise by the Warrant Officer site, you should only need to submit your packet with the board dates that have your MOS listed. Hope this helps.