think I figured it out... according to my 'Winning Coke' email notification folder in my yahoo account.
2-13-2006 - I had xmany of entries for multiple events for that day and 5 of them won. Received 5 coupons Saturday.
2-14-2006 - 2 winners this day. Received 2 coupons yesterday.
2-15-2006 - I had 3 winners so I believe I should be getting 3 in the mail today.
That is, if the pattern stays consistant?
I asked Coke support for an answer.
If you cared to know, I have 418 emails in my 'Courtesy/Losing Code' email folder.