Back to your original question, if you break down volume at all, IB will not be accurate because it sends data in bundles. I use both X_Trader and zen-fire and ninja to execute not chart though. I believe Ninja charting leaves a lot to be desired unless you can code in C. The only issue I have ever had was when I quickly canceled an order and placed another and the NT DOM froze, this has happened 2 times, I am probably switching to X_Trader for my primary execution platform soon.
i use charts with Constant Volume Bars - with IB datafeed. For me it works perfect. Unless you dont try to trade milisecond moves, you will be fine ))
Have you tried Ninja with the TT data feed? how does that compare to the Zenfire version? One issue I hear is the TT/NINJA combo does not give you historical charts
Hi Ray, Thanks for clarifying. Does the historical charting work the same with TT and Zen? I heard there was some difference...some issue with the TT feed that made it not as appealing as the Zenfire version, but was being worked on presently to find a fix.