Input Separation option is mandatory. I do not care what arguments you are going to put forward for or against it, I will just say that these arguments are pointless, they never convince anyone one way or another, the inputs will never be balanced and someone will always be disappointed. I do not care who has the advantage but either way I do not want to play with mixed inputs even if I would have the advantage as it is unfair. The only way to completely shut down this ever toxic topic is to add option of input based separation and never come back to it.