I think you are trying to reduce your losses by using USDT as a haven to keep the value of your currency"BTC" at the collapse.
It's a lazy plan and will often end up losing your money as I do not trust in USDT "Bittrex token."
I did a research and found this -------->
https://bitcointalk.org/index.php?topic=2128942.0 maybe that's what you're looking for.
Again I did not try this site; I have no relation to it, do your research, the risk is all yours.