Hi folks.. I'm flying ATL-LHR next week as a PM in Comfort+. Only a handful of free Delta 1 seats available, but lots available on DL 29 returning on Sept 28.

I was wondering if the collective readership here has noticed if the upgrades (when offered) seem to be offered more Ex-USA than EX-LHR? (perhaps its targeted more towards certain demographics). Any insights greatly appreciated.

Thanks!