Back testing

does anyone here know of a reliable service for backtesting a system…in commodities… if that makes a difference…I will put a system onC2 soon, which in and of itself has been successful over the years, but i want to tweak it a little Thanks Peter

Have you looked into Tradestation?? I heard their platform can do what you’re looking for.

I have a TradeStation acct. for FX and stocks. While the customer service is not the greatest the back testing as well as the charting package is top notch. They charge $99 a month for the platform unless you meet the trading requirments. The requirments are quite reasonable and easy to meet though.