I've been backtesting a credit spread strategy for a while now and its been working well for me. While paper trading it, though, I've discovered that OH doesn't support using stop limit orders for protecting options spread positions. They told me what I should do is simply submit a net debit order at the highest price (greatest loss) I am willing to to buy the spread back at. They said it should stay open until that price is met, but when I try it in paper trading, that net debit order triggers and buys it back right away. They weren't able to really help me anymore than that. So does anyone else here sell credit spreads through OH? And to anyone who likes to sell credit spreads, regardless of brokerage, what is your preferred method for protecting your positions?