I've noticed that QCharts seems to be suffering a recurrence of its old problem, lagging data. It seemed fine for quite a while, but after the ESig takeover, things have seemed to be gradually getting worse. Given that there are several programs that can use the free IB feed and thereby avoid the rip-off for RT data from the futures exchanges, it seems like a good idea to evaluate them more closely. Without having demo'd them, I can say that I like the look of Sierra Charts and find QT a little busy. For example, do you have to have a watch list running in QT to put up charts? Can yu delete all the various toolbars, etc in QT? They seem to take up a lot of screen space. My primary concern however is backfill. I like to have a couple of years of EOD and several months of intraday, at least 60 minute data. I don't like having to store the data on my HD, and having to run the computer at all times to collect data is not going to work for me. I know there are third party products that provide backfill, for a price. Anyone used them? This is primarily for futures and indexes, as I use another broker platform for stock trading. I do appreciate the ease of displaying stocks in QCharts however. You can create several charts with different timeframes and fill them by clicking on a watchlist or one of their hotlists. Very useful, as are their proprietary indicators. And of course, anyone who has used the QCharts platform loves the intuitive interface and great charting. I hate to replace them, but the combination of lagging data and expensive RT data is beginning to annoy me.