As far as your broker account is concerned you do not need to make the robot unique.
As for FTMO, I really wouldn’t worry about making the robots unique there either. There has to be a total of all accounts using the same robot mounting to $400,000 before FTMO becomes concerned. If there is a total of all accounts mounting to $400,000 you will receive an email asking you to modify your robot. It is only if you do not modify your robot that FTMO would cancel your account. So until you receive an email from FTMO I wouldn’t worry about making the robots unique.
I have not yet installed v5.1 on an account so I don’t have any trade results to share. I have decided to wait until after the first week of January to start any new trading accounts as I am expected the balance of the year to have low volatility.
Alan,