“You rely on that cRc from Chicago?
Theres an older larger well established CRC in Brooklyn.”
“CRC (Hisachdus) is one of the most reliable, yes, with greater standards. Your ignorance of it is irrelevant.”
Maybe in light of your second statement, you will take back your first statement. Ignorance of it is indeed irrelevant, whether of the one in chicago, brooklyn, or the Chinese Rabbinical Council.