From my personal viewpoint, I wouldn't do it. But I am chicken like that and want to go to a more "established" school for the purpose of getting a residency. I think you are the only one who can determine whether or not it's "safe." I think everyone on here says there is no school that has gotten pre-candidate status that has been denied accreditation, so that's something to consider as well. But it's ultimately up to you: what are you looking for in a school and how much risk can you tolerate? Good luck.