Wanted to keep this separate from the check certificates thread.

On a FT search for the "Costco rate", I still wonder what code to try online. I see SanDiego1K's post says "RCLUB". Is this the ongoing code, or was it time- or promotion-specific? I know that it was established back at the time of this thread that it pretty much tracked the AAA or prepaid rate. But in case it doesn't always, it's worth a look. (As AARP usually tracks Senior, but sometimes comes in a few dollars lower.) Thanks.