TDAmeritrade is not shorting JBII. No stock, I was told. I asked that my shares not be used to short and was told they no longer do that. My shares can be shorted. Period. I told the guy I would find a broker that would honor my request and was told TDA was in line with all brokers.
Better check on yours. That sell order at $15 might be the only way to accomplish it.
I'm going to wait for some feedback before calling TDA back and ask specifically if my shares have already been shorted and ask about the sell order at $15.00.