Originally Posted by
entropy
upgrade rates for 1K's of 75%+ on UA on non-'impossible' routes (SFO-BOS, PS, SFO/LAX-IAD) were pretty common, and on the CO plat side, 75% was a pretty reasonable rate, again, for non-hub-hub and transcon) Given my own observations, and anecdotal evidence from others, I'd say the same routes, even excluding the new hub-hub routes, experience at LEAST a 50% drop in CPU/UDU/EUA upgrade success.
DidItClear is showing a 60% overall upgrade rate for 1K's. I'm not saying the data is perfect, but it's a shade better than anecdotal, and it suggests less doom and gloom than (I think) you're suggesting. Although it certainly is a step down from the stats reported on
udustats.