Honestly it doesn't really matter because i'm going to do whatever is necessary to get to SFAS. The questions came from how it all works for prior service guys actually going back through. It seemed like experiences had varied. I've been out about 8 months and Kayem said he's got no break in service at all, the program requires you to pick up at OSUT no matter what. I'd have to agree, it is time toward retirement and the long haul and honestly my biggest question was if i'm going to be able to continue training in OSUT on my own and not spend 13 weeks getting slower and weaker. But your absolutely right, it's all just a stepping stone to get where you need to go.
You know what? It ain't nothing but a thing. Why are you so worried about passes, getting out of training and actually learning the new culture (Army) in which you will be immersed? Tell the friggin recruiter you want to go all the way through Basic and AIT, then do BAC and SOPC before SFAS.
If you really want it, you will go for it no matter the cost. If you really want to train while in Basic/AIT/BAC, use your personal time to do what you can to maintain... and be a sponge to the new ways of doing things.
Mind over matter. Graduate or Die. Excel or Fail.
If you really want it, you really want it, all you need is a report date and a packing list for your first step, the rest is all on your performance and mental/emotional/intestinal fortitude.