I recently subscribed to both Esignal and Qcharts at the same time. I like the Qcharts interface and cleanliness of the charts. I put up charts and quotes of the exact same stocks and I notice that the Qcharts is about 1/2 - 1 sec behind Esignal. This tiny lag probably wouldn't matter unless you are a scalper but I was wondering if Qcharts will ever be as fast. I heard somewhere that Esignal gets all its data from the exchanges and Qcharts gets its data from a secondary provider which causes the lag. Is this right? Will Qcharts ever be as fast?