It depends on the size of your account. If you are trading a 500k account then you're full margin at 1000 lots. Not good. However, if you're trading 50M then it's not really that big of a size. You're gonna get some serious slippage and partial fills with that kind of size in this market though. The DOM is pretty thin these days.
Quote from bali_survivor:
What if your datafeed / software / ISP connection / broker / broker to exchange datafeed goes down and it takes a while to be back on-line? People who are saying this are a disaster waiting to happen or otherwise papertrading and living in a delusional world.
Maria