stay away from eoptions unless you are just going to be doing straddle/strangles, or calendars.. their interface is horrible.. and if you enter a IC, you can't close out just the Puts or calls at once, without calling in. Also, on a spread or straddle, there is no option for GTC unless you call it in. And when you call it in, the commission doubles. from 3 and .10 to 6 and .10
Going to eventually consolidate my TOS and eoptions and move to IB.
Also a lot of times the short call/put on a calendar doesn't match up right and ends up being a margin play.