Ming is the developer of SteadyWinner who is recently engaged to develop an updated version Steady Winner v5. In this new version, he wants to incorporate the news filter function. However the programmer told him that this function cannot be back tested so he put it on demo parallel to a normal version to see the dissimilarity. This new version will come as signal service as well as it will be not selling as stand alone EA. Now 99% back testing has been done as well as many suggestions and improvements have been incorporated from users in different forums. This new version will release very soon.
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In my opinion, it would not perform on forward testing. For forward testing there must be need of another EA. You can use this kind of method first to make an Expert Advisor and you can add back testing news filter to an ea try to test it with dissimilar settings.
Furthermore if news filters help then will make another EA that can be working in live testing.