[nucleardog]

Also that bank means you have a wing tilted up and a wing tilted down, increasing the vertical height of the plane at a time you’re trying to increase vertical separation.

Doing both reeks to me of a solution in search of a problem that’s going to end up the target of some later NTSB report when you hit some weird edge case where the dynamics and dimensions of the two planes aren’t fully accounted for.

[pdonis]

> bank means you have a wing tilted up and a wing tilted down, increasing the vertical height of the plane at a time you’re trying to increase vertical separation

Yes, but it's also increasing horizontal separation (from a predicted value of zero), which might still be a reasonable tradeoff to consider.