You shouldn't trust any broker's data, only when it matches your primary data source. I recall using X_Trader and you will not believe, but X_T's feed was pure ****. totally unreliable. It used to just lock at times of increased volatility and if you were to base your decisions trusting X_T's data it was impossible to exploit its main purpose - speed and efficiency of execution. Later I switched to NT & it was a lot better, but IQ feed never locked in the last year that I've been using it, so I would always recommend to base your decisions not on your broker's charts/tape, but on another reliable source. Especially when scalping, a practical impossibility due to unreliability of CS's chart data, and it's not just CS, all others as well. One would have thought that reliability of quotes/charts would be a number 1 priority for a broker that is neutral to client's dealings, but all these bad data experiences suggest that a lot of retail brokers/bookies have another agenda, otherwise why not rectify ongoing problems.