While there's commercial in Amazing race I can type this really quickly. :)
You can't trade stangles since you can only be in one trade in a particular share at the time. Unless you have two seperate accounts.
There are no hidden traps, all you do is pay interest per day $1-2 or so, or get paid interest per day if you are short.
I am rarely in a trade longer than a few weeks so the interest has ever bothered me. If you'd be long 20 stocks then I can see it costing a bit. But if you are long a few and short a few they'll cancel each other out. I've maximum been in 12 trades (long) at the same time but am not in them for very long.
