I am resurrecting TS2k after a couple of years with TS8 and it's predecessors. TS2k actually still works. TS8 has data on demand into charts and RadarScreen. TS2k can be retrofitted with data on demand into charts with a third party app but I never found an app that would get data on demand into Radarscreen. One click on the issue in RadarScreen in TS8 will bring up a chart of the issue, with TS2k you have to enter the symbol in a chart so maybe things will be harder when it is hectic. An indicator in RadarScreen can have 100 columns of output, with TS2k [also called TS5 sometimes] you will have only 4 columns available to you. The look and feel of TS8 is much better but I am questioning if the functionality is really that much better. Getting a large list of symbols into the Global server for TS2k is a pain, I use a macro to copy symbols from an Excel file and put them into the Global Server. It was running for hours yesterday copying about 1200 symbols, the macro program runs at the same speed as it was recorded. That would have been a grim, boring, and depressing task by hand. Getting 100 bars of data on each symbol took quite a few minutes from DTNIQ. What that means in terms of TS8 over TS2k is in the evening I will have to do a data download before I can screen for the next day's trading with TS2k and with TS8 I would open the Radarscreen and it would do the download transparently and a little quicker. I don't use that much different types of history or that much for that matter. If my Global Server crashes I can delete the files and reload the history I need in an hour.
If I connect 450 symbols to the DTN network my CPU jumps to 100% for a few seconds at the open and then settles down to a much lower figure. That would be improved with more RAM in my experience, I have not gotten around to installing the second stick or checking to see if I have a delay in the data at the open or at any elevated CPU usage levels.
There are things you cannot do in both versions. I make very much use of the Radarscreen and in neither version can I "confuse" it without paying the price. You cannot format an indicator while it is calculationg and loading data, it will slow to a permanent crawl. With TS8 I learned to delete the indicator, format it, I made a dummy indicator to load all the data, only after the data is loaded do I install the indicator back to Radarscreen, saves me headaches.