Then why do we keep hearing that it's never been done before? I'm not doubting you, just asking.
Filibustering judicial nominees never has been done before, although some claim that it was done with Abe Fortis back in the 1960's. But the GOP didn't need to filibuster. As the majority party they controlled the committee schedule. And Jesse Helms was chairman. So killing judicial nominees at the committee level was a piece of cake.