I am currently using TS2000i and its Global Server - I can load my own historical backward adjusted data and let esignal only update the last tick. So i load every day my own data , let it update by esignal and with Dynaloader i can then download backfills for current day from esignal if i wish to. (in case computer crashes and i lose data the current day) What other software can do this ? I want to use my own historical 5 min data and let it update by a real time data feed - with backfill possibilities like dynaloader. I wonder how other people handle trading systems that need long backward adjusted futures data ? Esignal for example let you create those - but only within esignal and not in third party software like TS2000i or MetaStock.