I'm not sure this is the point of the OP's thread. I understand you want an absolute answer, and we don't need an argument about subjective and objective, but I'm pretty sure he just wants to know if other "ears" can hear a difference through their set of monitoring conditions.

I'm not saying that I am right or wrong, but I did hear a small difference between A and B. The question that needs to be answered is, is the money well spent for such a small, or no difference, and NOT whether your test is better than my ears