Thanks for the reply I do understand that the charts are built from tick data. I guess what Im asking is.. because the real-time data vendors only supply limited backfill...about 120days for my IQfeed...if I want to create a complete history for something like the ES I need to go to a dedicated tick...

I have MC8 and MC.net I currently have IQfeed as my primary real time data feed. ..this currently gives 120 calender days of tick history. This works great for RealTime charting and limited development and testing ... My question is if anyone knows of a good way to create a complete tick history for...