So, I'm a beginner in forex trading. Never actually traded. I've been using TradeStation for stock options and stocks. I wanted to test forex out a little over a year ago and TradeStation was using GFT as their source at the time. I tried some strategies for EURUSD and mainly I was in the red for the month. I didn't touch forex until about two months ago and tested the same strategies on the same symbol EURUSD. I've been in the green pretty much the whole time. So, my question is, since TradeStation is now using GAIN could there be any thing from the data provider standpoint that could affect the plus or minus? Basically, with the data itself, GAIN verses GFT could there be any significant difference to factor in?