To everybody who tried transfering back: Did it work or not, how long did it take, which problems did you run into and how large was the amount?
I haven't bought any yet and thus have never tried to transfer back.
1. It's BTC or XBT, not BC. BC is already taken, by "Before Christ" era denomination.
2. Yes, transferring out works of course. But you have to remember - this is a wild west territory, nobody is holding your hand, nobody will save your funds if something goes wrong, police would consider you crazy, you are 100% responsible for security of your funds and trust in any services that you use. Do research.