I need some of the more experienced daytraders in this illustrious group to give me some pointers. I have recently began trying to implement some strategy plays by shorting some fairly liquid stocks in pre-market, but I can't seem to get any fills. I completely understand the basic shorting rules, such as margin required, up-ticks, etc. I trade through IB, mark my orders GTC, and I leave my routing at the default SMART, so what gives? If anyone can give me a suggestion as to how to tweak my order to get a fill, I would really appreciate it.