That's very true, but aren't these both MGM properties? What I mean is that film elements provided to both TT and Kino should have been from the same library right? As for different time periods, universal recently released both The War Wagon from the mid sixties, and Rooster Cogburn from the mid seventies. Both sport an outstanding high def transfer, even though the film processing used was assuredly quite different.
A question for MGM Jim, rather than Twilight Time...or Kino...or even Criterion.
Having seen a lot of catalogue, as I'm sure most of us here have, the only constant with film mastering seems to be...there is no constant...no absolute reference standard...even by the same studio from the same era. The stock characteristics and preservation state of one picture will yield a magnificent HD master, while another will be problematic throughout. Most, like Secret of Santa Vittoria and Brannigan, seem to fall somewhere on the high side in between, although from my observations over the years, MGM's library - especially its UA titles - can be like tip-toeing through a minefield...
Which is why I choose to celebrate what has come across very well, like Khartoum, Equus, and The Train, rather than getting hung up on all the woulda/shoulda/couldas for other titles...many of which would have otherwise languished indefinitely without any domestic Blu-ray release.