I always hear don't trade with money that's not yours etc. But, if you're using 2/1 margin, you're really not touching the borrowed money unless your losses exceed 50%, right? It's like this-- you have 10K in trading capital. You make a deal with someone to give you another 10K. If your losses reach 10K, you stop trading as to not risk their money, i.e. 50%. But any profit you make on their 10K you get to keep (less interest). Sounds like a good deal to me... Let's say you are swing trading, putting 1/10 of your capital into each position, using 5% stop loses...I doubt all of a sudden one day you'll wake up to find your entire acct. down more than 50%. And if you really want to be safe, stop trading if your losses reach 40%, worst case scenario. So, why not use 2/1 margin swing trading if you use reasonable position sizing and resolve to stop trading should your acct. lose 50%?