Personally, I have never worried about it. I just trade Petkos’ robots as is, and I have never had a problem with it. Petko has said just changing one indicator slightly is sufficient to make the robot unique. I just contacted the FTMO Chat line and they cannot answer the question as to what it takes to make a robot unique. They said the robot provider is the only one that can say the robot provided to you is unique. They said if I change the magic number they cannot confirm that someone else might make the very same change and only the robot provider can confirm that there are no more than one robot with the same magic number. The same with changing an indicator setting as it is still possible for another person to make exactly the same change. See the problem? It is only the robot provider that can say for sure the robot is unique.
I also asked the FTMO Chat line if the Third Party EA rule applies to the Challenge and Verification stage. The response was that it only applies to FUNDED accounts! So nothing to worry about!!!
Alan,