DislikedQuestion for users with live account with MB Trading.
1) What about re-quotes or slipage?
2) Do they have fast execution?
Ignored
No re-quotes. You might get a bit of slippage if the market is thin and moving quick but for the most part the orders are taken in very quickly. There are settings you can change within your preferences which mean you can opt for orders to be executed with an emphasis upon time, or an emphasis upon price. Really you'd need to open two accounts and take several trades simultaneously to see the difference, but I have mine set to price and I do just fine. If your orders are not executed quickly, it'll be because there is no one to pick up the other side of your trade (it is moving quick and therefore the market is one-sided, or you are trading odd lots). You cannot hold any broker to be responsible for this, and is in fact proof that they are actually an ECN. - not every characteristic of them is advantageous to the trader.
msc, forex and futures can not and will not be able to be traded in the same account in the US unless the legal conditions concerning the trading of these instruments are aligned. I shouldn't think it'd take much more than a phone call to MBT to move the funds into a futures account for you.