Cherrybim I did not put words in your mouth.
I just pointed out that no Rav has ever to my knowledge said that
C’S and C’Y’ are “the same”.
When you ask ‘what is the difference’ (and I have already said I am just trying to follow the rabbionnim even if I do not know exactly what the difference is, but Rav Gronish has specifically said they are not the same and no other Rav, to my knowledge, has ever said they were) what can you possibly be trying to get people to think, ‘other then’, “they must be the same”.
You asked what is the difference, I did not “put it in your mouth”.