Originally Posted by
davetravels
First of all, if what you say is actually true, it would make the Reserve Card
MUCH more valuable, and, I think there'd be a HUGE RUSH to get them!
That said, I really don't think that phone agents, even DM agents, know everything about everything, PARTICULARLY about things they don't deal with or have any control over. They just enter the info in the system, and the system does whatever it's gonna do! Why they tell us "stuff" that's not true . . . well . . . that's for another thread!

Um, you are responding to a 1.5 year old post. Upgrade priority on website clearly lists Reserve card as coming after fare class as a tie-breaker.
https://www.delta.com/content/www/en...-upgrades.html
At any rate, I don't think anyone would be able to determine how many cases it made a difference. I've been on the bubble a number of times and made it, but I have no way of knowing whether my Reserve card was acting as a tie-breaker or not in those cases or if I would have made it anyway.