For those of you who are looking to defer, don't do what I did. I went in today to do the medical, with every intention of deferring to the next class. I went to every counter they sent me to and asked what I needed to do, no one could give me an answer, all they would do is just give me a nasty look and rush me to do more paperwork. Spent all day there again, and finished my medical. When I went to hand in my stuff, I asked the lady at the counter, again, what do I need to do to defer. She had no answer, and decided to finally ask someone who was in charge for conductors.
When that lady came in, she looked at my paperwork and asked why I bothered to do the pre-employment, and the medical, if I wasn't planning on starting on the 22nd. -__- I told her that I asked every single station I had visited, even the doctors who check you out, and no one could give me an answer, and just rushed me to do more paperwork.
Turns out, when you came in for pre-employment, all you had to do was just decline the offer, and be done with it. You then would have to go to the DCAS building in manhattan and essentially put yourself back on the list for the conductors list. If you happen to have finished medical like I did, it's good for 90 days. She told me that I should come in, sometime in the first or second week of may to put myself back on the list and that I might still not be able to get on the next class rotation, but it's what I would have to do.
Good luck guys!