I think you hit the nail on the head if you've got a big account then use a professional broker there's no point in workng your way through a pile of SB providers to say the world is stacked against you because the odds to be honest are skewed on any account where you're trading small lot sizes. From my experiences with SB from 2005 onwards it took a while to realise that pointing and clicking on trades were never consistent actual prices and quotes were frequently different to what you got filled at. Another favourite trick is to quote min stops of say 20 pips for a market but at key levels it would change to 100 pips. Using pending orders at key levels in advance got around a lot of the tricks they used. Another point is that I think you're wasting your life away sitting there staring at screens, looking at this indie, drawing this line or that line that might be support or resistance. The amount of TA books I've read would fill the local library and they're all crap in my opinion, some less than others.