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for the record .. I design and trade systems using TS2K and my data vendor has been Genesis Data. .. so I finally succumbed and got TS7.1 so some of my signals would be entered automatically , so before setting them up I checked the systems and results to be sure I got the same history as I got on TS2K ..
I found significant discrepancies .. which I then had to reconcile.. in the end all the differences came down to different data histories so I used Bloomberg to check and see which data was correct .. in every case Genesis was right and TS7.1 had errors that created incorrect historical trades and performance. I'm talking about major errors in daily prices for the S&P 500 lead contract - not some obscure palladium contract!
After seeing what 'I've seen I could never use TS7.1 to design a new system...
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