my question is if any of my fellow traders have used, owndata2, IB for Data and TS8.1. all together. 1)was the data good 2)do you have the ability to get rid of bad ticks. 3)how much data can you get from IB and can you add more data for more extensive back testing from other sources. Ive done a pretty good search and can't find that this subject has been discussed. so any help from those who have experience with this would be helpful. Pat Rogers