Thanks. I'll try KVS. I used Expertflyer in the past to search for the fare award buckets and it worked fine so I believe at one point it was there. This may have been a couple of years ago but I remember checking DL and AF for a couple of flights to Europe.

I was specifically looking for the R bucket since that's what the DL rep said had to be available for me to use the regional upgrades. I was looking a booking a coach fare and using the certificate right away to confirm the upgrade but there wasn't anything released yet. She did say I could book the coach ticket and they'd put me on the waitlist in the event that it opened up but I'm not sure I want to go that route even though "supposedly" the regional certificates trump all others in the upgrade queue.

Thanks for the info on KVS. I forgot that was out there. Take care and safe travels.