This may sound like a silly question but, within MT4, is it possible to request a Buy/Sell quote from the broker and then execute the order based on acceptance of the price quoted. Usually these types of quotes have a very short period of validity, a couple of seconds at best.
This would allow you to compare the price received with the market price form other sources and see if your broker is playing fair.
This would allow you to compare the price received with the market price form other sources and see if your broker is playing fair.
Just my 2 pips worth