More players than not (probably more like 80% to 90%) really do NOT look at the rubber color of each oppoennt during each time the ball is struck by the opponent. Except may be few more % look during when an oppoennt serves. And yet robotNazis whine to no end about this as to why they did not see you twiddle the racket as if you commited a major crime, even though IOC's ITTF sort of spoon-feeds them & protects tjem with the two-color rule.
Since the robotNazis are going to whine regardless, you are better off using purple or blue , which are closest to black (based on colors I have seen so far for new color rubbers)
