No one else has experienced crushed blacks and blown-out whites with 4K77?
Depends what you mean. The optical duplication process effectively boosts contrast at every step, so a projection print (4K77) should look contrast-boosted compared with a negative or IP (DeEd). That’s part of what I personally don’t like about the look of print-based preservations in general (and why I prefer the look of well-done Blu-rays – 4K and otherwise – to 35mm prints). That said, 4K83 keeps it pretty under control somehow, possibly because the source was just better. To be honest, I’d probably prefer 4K83 if it came out first, but both it and the DeEd are so far beyond close enough to perfect for my tastes, I go with DeEd simply because I’ve already got one Holy Grail and have no use for a second one.