HI all, im just starting the long process of building strategies with TradeStation on Eur/Usd (spot). I know that some people here tried their systems in the real market and how slippage/spreads can affect your strategy so here is my questions : 1-how should i fill the "format strategy/costs" window in TS to have a realistic simulation ? 2-when this is done, what's according to you the most important criteria to sort out the optimization report. thank you for your help. (and sorry for my poor english)